Lovetoy Knights Ring Dual Purpose Sleeve Spiral: review

Lovetoy Knights Ring Dual Purpose Sleeve — in brief

Lovetoy Knights Ring Vibrating Dual Purpose Sleeve — Spiral is an open sleeve in white TPE with a small vibrator built into a pocket on the outside. The manufacturer markets it as two products in one: a penis sleeve that increases circumference when worn during intercourse, and a masturbation sleeve when used alone. The double use behind the designation dual purpose in the model name is also the whole point of the design — the channel runs through both ends instead of being closed like on a regular lengthener.

The specification is short but unambiguous. Lovetoy lists the item number LV314111, the material TPE, the color white, the total length 13.5 centimeters, the inner diameter 3 centimeters, and the outer diameter 6.5 centimeters. The product weight is stated as 194 grams. The vibration is powered by a single CR2032 cell that is included, and in the manufacturer’s own specification table the setting is listed as Single Speed — meaning one speed, not multiple modes. The circumference increase is stated as at least 55 percent. In Sweden, the item is sold by three stores for 199 or 259 SEK, and two of them had it in stock at the price check on July 29, 2026.

This review applies exclusively to the Spiral variant with EAN 6942063402428. Lovetoy sells the same sleeve in three textures, and each has its own EAN: Spiral 6942063402428, Drip 6942063402435, and Wavy 6942063402442. Dimensions, material, and battery are identical across all three. Check the number if you compare prices, because the stores often use the same images and the same body text for the entire trio.

One thing needs to be said plainly right here, because it isn’t shown in any Swedish store text: the manufacturer explicitly writes that the mini vibrator is not waterproof and that the product should not be submerged in water. It’s unusually clearly worded for this price range, and it has consequences for both cleaning and use in the shower. We’ll get back to that later.

What does dual purpose mean in practice?

A classic penis sleeve is closed at the top. It adds length and circumference, but it can’t be used as a masturbation product because there’s no through channel. A classic masturbation sleeve, on the other hand, is open at both ends but lacks the stretchiness needed to stay in place during intercourse. Knights Ring Dual Purpose Sleeve tries to be both: an open, short, and strongly stretchable TPE body with texture on both the inside and the outside.

The manufacturer describes the inside as covered with raised knobs, textured nodes, and stimulating ribs, and the outside has the spiral-shaped ridging that gave the variant its name. In practice, that means the outer structure serves two functions at the same time: it provides grip when the sleeve is held in the hand during solo use, and it becomes a stimulating surface for your partner when the sleeve is worn. It’s a well-thought-out solution to a real design problem, and it’s the single strongest idea in the product.

What can be established is that the compromise shows in the measurements. With a total length of 13.5 centimeters, the sleeve is too short to function as an extender in the true sense of the word — it adds circumference, not length. The manufacturer also makes no claim of length for this model, unlike Lovetoy’s silicone sleeve Add 2" Revolutionary Silicone Nature Extender, where a two-inch extension is expressly stated. So if you want length, this is the wrong product, and it’s worth knowing before you order.

Spiral, Drip, or Wavy — and what’s different from regular Knights Ring?

The name Knights Ring covers an entire series at Lovetoy. The manufacturer’s category page lists 27 items under that label, and they fall into two clearly separate groups that are easy to mix up in stores.

• Dual Purpose Sleeve — three items: Spiral (LV314111), Drip (LV314112), and Wavy (LV314113). All three are 13.5 centimeters long, have a 3-centimeter inner diameter and a 6.5-centimeter outer diameter, run on a CR2032, and are stated to increase circumference by 55 percent. The only difference is the pattern and a few grams in weight: 194 grams for Spiral, 195 for Wavy, and 201 for Drip.
• Vibrating Knights Ring — the other 24 items, in white, blue, and black, with or without a cock sleeve. This is a completely different product type: a short ring worn around the base of the penis. White Vibrating Spiral Knights Ring (LV343111) measures 10 centimeters, weighs 69 grams, and is stated to increase circumference by 45 percent.

So the difference is not cosmetic. One group is a sleeve you can masturbate with, the other is a ring you wear. That both are called Knights Ring and that both are powered by the same CR2032 cell makes the mix-up easy, especially at stores that list them under the same brand page. Check the EAN number, not the name.

Another detail further distinguishes the groups, and it’s more interesting than it looks. The manufacturer explicitly states that the standard Vibrating Spiral Knights Ring is Waterproof, Latex free, Phthalate free. On the Dual Purpose Sleeve, none of the three promises are present — instead, it says that the mini vibrator is not waterproof. Two products in the same series, with the same material and the same battery, but with entirely different declarations.

Material and build quality: TPE, not silicone

The choice of material is the single most important line in the specification for a product that is meant to sit against mucous membranes, because it determines whether the product can be cleaned. Lovetoy specifies a single material for the Knights Ring Dual Purpose Sleeve: TPE. The manufacturer’s product text describes it as high-quality, durable, and non-toxic TPE, and also as safe and tear-resistant TPE with elasticity and a tight fit. Blush Me states the material as “skin-friendly TPE” in its product data, and Vuxen writes “tpe” straight out in its quick facts. All three sources point in the same direction.

What is TPE, and what does it mean for hygiene?

TPE stands for thermoplastic elastomer and is a collective term, not a single material. What’s common to the group is that the material behaves like rubber but can be melted and injection-molded like plastic. It’s cheap, very stretchable, and easy to give a detailed surface texture—exactly the three qualities that a product of this type is built on. Having the bumps and ribs on the inside and the spiral on the outside be injection-molded in one piece is a direct result of the material choice.

The downside is porosity. TPE, unlike cured silicone, is not a pore-free material. The surface has microscopic cavities where moisture and residue can remain, and that means a TPE product can never be as clean as a silicone product of the same shape. That’s why this product category is usually described as a consumable rather than something you own for years. With normal use, it’s the surface—not the vibrator—that determines when the product should be replaced.

Vuxen also states that the stiffness is “soft” and the elasticity “stretchable.” The combination of soft and strongly stretchable is exactly what the construction needs—a 3-centimeter channel that is supposed to accommodate significantly more than 3 centimeters assumes that the material gives way—but soft TPE is also the variant that’s most sensitive to mechanical wear and the wrong types of lubricants.

Phthalates, latex, and the missing declaration

Phthalates are a group of plasticizers used to make plastic, above all soft PVC, flexible. Kemikalieinspektionen (the Swedish Chemicals Agency) describes them as substances that can affect the endocrine system and make reproduction more difficult, and several of them are therefore restricted or banned within the EU in a large number of products. Body-hugging products in soft plastic are recurring targets of supervision for exactly that reason.

Here’s a gap that deserves to be written out. Lovetoy publishes no ftalate declaration and no latex declaration for Knights Ring Dual Purpose Sleeve. What is stated on the product page is that the material is TPE and that it is non-toxic, which is not the same thing. On the manufacturer’s other product pages, the commitment is explicitly stated the other way around—both the regular Vibrating Spiral Knights Ring and the silicone sleeve Add 2" Revolutionary Silicone Nature Extender are described as latex-free and phthalate-free. The fact that this line is present on the sister products but not on this one is a deviation that the buyer should be aware of, not a detail to interpret away.

It should be said that, as a material category, TPE generally does not require phthalate plasticizers to become soft—its softness comes from the polymer’s own block structure, not from added plasticizers, and that is one of the reasons why TPE to a large extent replaces soft plasticized PVC in this product category. But a general line of reasoning about the material category does not replace a declaration from the manufacturer for that specific item, and no such declaration exists.

Dimensions and weight: 13.5 centimeters, 194 grams, and 55 percent

The manufacturer states the dimensions both in inches and in centimeters, and the two sets match: the total length of 5.3 inches corresponds to the 13.5 centimeters listed in the specification table, the inner diameter of 1.2 inches corresponds to 3 centimeters, and the outer diameter of 2.56 inches corresponds to 6.5 centimeters. All three Swedish shops present the same figures. It’s unusual for a product in this price range to have such a clear-cut measurement basis, and it’s worth noting as a plus.

The manufacturer’s dimension graphic, which the shops publish in their image galleries, is even more detailed. It lists 13.5 centimeters in height, 6.5 centimeters in width over the upper, fuller part, and 5.5 centimeters over the lower part. The bullet in the pocket on the outside is stated as 5.6 × 2.5 centimeters. The cross-section of the channel indicates 3 centimeters as the channel’s dimensions and 1.6 centimeters at the opening at the bottom—so it’s a channel that tapers toward one end.

According to the manufacturer, the weight is 194 grams, and that figure refers to the product itself: the same specification table lists the packed weight separately as 223 grams, which gives 29 grams for the cardboard box. This is one of the few times a manufacturer in this category distinguishes between product weight and shipping weight, and that makes the information useful rather than just approximate. 194 grams is also a lot for the format—almost three times the 69 grams that Lovetoy lists for the standard Vibrating Spiral Knights Ring—which says something about how much massive material is in the walls.

The packaging measures 7.5 × 7.5 × 16 centimeters according to the manufacturer. It’s a narrow, tall cardboard box, and it also shows up in retailers’ pictures: a window box with the product name, the texture designation SPIRAL, and the Lovetoys logo. The cardboard is not resealable, and therefore it doesn’t work as storage in the long run.

One speed, one button: this is how the vibration is controlled

The control is as simple as it can be. The manufacturer’s specification table lists the setting as Single Speed, meaning a single speed. And the manufacturer’s own product image points out a button labeled Power button on the top side of the bullet. In other words, there are no programs, no pulse modes, and no intensity scale—the vibration is either on or off.

It’s worth pausing here, because Swedish shop texts consistently talk about "built-in vibration for an extra kick" without mentioning that there’s only one setting. A buyer who’s used to a vibrating product having at least three or four settings will be surprised. Compare with Lovetoys own usual Knights Ring, which is also listed as Single Speed: it’s therefore not a cutback specifically for this model, but how the entire series is designed.

What this means in practice is that the product shouldn’t be bought for the vibration’s sake. The vibration is an add-on to a mechanical product, not the product’s main function. What actually carries the design is the texture on the inside and outside and the 55 percent around-the-circumference figure that the manufacturer states. Someone looking for a controllable vibration should look at a product with a rechargeable battery and multiple modes, and expect a completely different price tag.

The bullet measures 5.6 × 2.5 centimeters

The vibrator sits in a molded pocket on the outside of the sleeve—the elongated raised section that clearly shows in the product pictures. The manufacturer’s dimension graphic lists the bullet’s dimensions as 5.6 × 2.5 centimeters, which is a common format for a simple egg vibrator with a coin-cell battery. The placement on the outside is logical for a product that’s meant to be worn: the vibration then reaches both the wearer through the sleeve wall and the partner through contact with the outside.

There’s a practical consequence of the design that’s worth mentioning. Lovetoy provides no information on whether the bullet can be removed from the pocket, either in the product text or in the specification table, and none of the three Swedish stores mentions it either. It matters for two reasons: first, how the battery replacement is done, and second, how thoroughly the sleeve can be rinsed without the electronics getting wet. Without any information from the manufacturer, it’s safest to assume that the electronics stay in the product during cleaning.

How is the Lovetoy Knights Ring powered? CR2032, 3 volt, and 235 mAh

The power source is a single CR2032 button cell, and the manufacturer states that it is included. Blush Me confirms the same thing in its structured product data, where the battery type is listed as CR2032 and the number of batteries is 1. This means the product does not charge at all—there is no cable, no charging port, and no charging time to report.

CR2032 is a standardized cell, which means you can put numbers on what it delivers even without information from Lovetoy. According to Energizer’s datasheet, CR2032 is a lithium-manganese dioxide cell with the designation IEC-CR2032, nominal voltage 3.0 volts, and typical capacity 235 milliamp-hours down to 2.0 volts at a 15 kiloohm load and at a temperature of 21 degrees. The cell typically weighs 3.0 grams, measures 19.70–20.00 millimeters in diameter and 2.90–3.20 millimeters in height, operates between minus 30 and plus 60 degrees, and self-discharges by about one percent per year.

That it’s a standard cell is the real advantage here, and it shouldn’t be underestimated. A CR2032 costs a few tens of kronor at any grocery store, and it can be replaced. Compared with a product whose built-in lithium-ion cell is permanently fixed and cannot be replaced—the usual setup across the entire category—that means the electronics impose no limit on how long the product can be used. Here, the material determines the service life, not the battery, and that’s unusual.

The operating time that isn’t published

Lovetoy does not publish operating time for Knights Ring Dual Purpose Sleeve, either in hours or in number of uses, and none of the three Swedish stores lists any either. So it’s not possible to say how long a cell lasts, because that requires knowing how much current the motor draws—information that is not published.

What can be established is that 235 milliamp-hours is a small amount of energy in this context. For comparison, rechargeable lithium-ion cells in simpler vibrators typically are at a few hundred milliamp-hours but at 3.7 volts, and they can be recharged an unlimited number of times. A button cell can’t be recharged. So count on extra CR2032 cells being an ongoing cost—even if a very small one—and by all means buy a multipack right away, because an empty cell otherwise stops the use immediately.

A safety note belongs here and applies to all button cell products. Energizer’s datasheet begins its safety section by stating that the cell should be kept out of children’s reach: ingestion can cause serious injuries through chemical burns. Store spare cells in their original packaging and not loosely in a drawer.

Water resistance: the manufacturer explicitly says no

This is the most important line in the entire specification, and it only appears in one place. Lovetoy ends its bullet list for Knights Ring Dual Purpose Sleeve with the note that the mini vibrator is not waterproof and that it should not be submerged in water. None of the three Swedish stores reproduce this information—Blush Me and SexleksakerOutlet instead write that the product is “easy to clean,” without any reservations.

Why the lack of an IP rating matters

Enclosure classes for electrical equipment are defined in the international standard IEC 60529, which gives each product an IP code where the second digit indicates protection against water. A product labeled IPX7 has been tested for submersion, one labeled IPX4 can handle splashes from all directions, and a product with no code at all has no documented water testing whatsoever. Lovetoy does not publish an IP rating for this product.

The absence of a rating is never a sign that the product is approved—it only means that no one has certified anything. Here, the manufacturer goes even further and actively tells you not to. The combination is unambiguous: the sleeve must not be taken into the shower or the bathtub, and it must not be held under running water as a whole.

At the same time, it’s a strange order for a product that, by its very nature, becomes wet. An open sleeve used with water-based lubricant needs to be rinsed out internally to become clean, and that’s exactly what the manufacturer advises against. Compare with Lovetoy’s usual Vibrating Spiral Knights Ring, which is powered by the same CR2032 cell but which the manufacturer explicitly calls waterproof. Same series, same battery type, opposite message.

Cleaning, lubricant, and storage

The practical conclusion of the water information is that cleaning must be targeted. Rinse the channel internally with lukewarm water and mild, fragrance-free soap, and keep the side where the vibrator pocket is located as dry as possible. Do not use a sink with the product lying in water, and do not submerge it. Let the sleeve air-dry completely before putting it away— a damp TPE surface in a closed box is the fastest route to the material starting to smell.

The lubricant question has a clear answer. SexleksakerOutlet explicitly states that the product is compatible with water-based lubricant, and that’s also the only one that should be used. Silicone-based lubricant should be avoided on soft elastomers because it breaks down the surface over time and makes it even more porous, and a porous surface can no longer be cleaned—only replaced. Oil-based products like coconut oil also leave a film that is very difficult to remove from a textured channel.

The amount of lubricant matters more here than on a smooth product. A channel lined with bumps and ridges has significantly more contact surface than a smooth channel, and friction follows accordingly. Expect to top up during use, because water-based lubricant dries in—just a few drops of water reactivates it without needing more lubricant.

For storage, it’s the same as for all TPE: don’t let the product rest against other soft-plastic products. Plasticizers and colorants can migrate between materials that are in contact with each other, and the result is discoloration and sticky surfaces on both. A separate fabric pouch or a separate bag is enough. The original box at 7.5 × 7.5 × 16 centimeters can’t be resealed, and therefore only works as a shipping package.

Fit: 3 centimeters in channel and 55 percent in circumference

The fit is the question that determines whether the product works for a given user, and it can be reasoned about based on the published measurements. The manufacturer states the inner diameter as 3 centimeters when at rest. A 3-centimeter diameter channel corresponds to a circumference of just under 9.5 centimeters when at rest, which is clearly below average—so the entire construction is based on the TPE stretching out around what’s inserted. Adults list the elasticity as "stretchable" and the stiffness as "soft," which is the prerequisite for it to work.

The manufacturer’s size graphic also indicates 1.6 centimeters at the opening at the bottom. So the channel narrows toward the lower end, which provides the tight feel that an onani sleeve needs and also helps the sleeve stay in place when worn. In practice, this means that resistance is greatest at the start of insertion, and that lubricant is mandatory rather than optional.

The outer diameter of 6.5 centimeters is the measurement that determines how much circumference gets added. An outer diameter of 6.5 centimeters corresponds to a little over 20 centimeters of outer circumference, and that is reasonably consistent with the manufacturer’s claim of at least a 55 percent increase. But since the material stretches around what’s inserted, it’s a value that varies by user: the more the channel needs to stretch, the thinner the wall becomes and the smaller the relative increase. 55 percent should be read as a maximum value for the narrower end of the range, not as a guarantee.

With a total length of 13.5 centimeters, the sleeve doesn’t cover the entire shaft for most users. It’s a deliberate design—it’s built to enclose part of the shaft and add circumference where it’s most noticeable, not to extend length. Anyone who wants length should look at another product, and Lovetoy’s own range includes one in the silicone sleeve that’s described in the comparison section below.

Lovetoy Knights Ring Dual Purpose Sleeve compared with the alternatives

Three comparisons are relevant: versus the standard Knights Ring ring from the same series, versus Lovetoy’s own silicone sleeve, and versus the two sibling variants with a different texture. All information below comes from the manufacturer’s own product pages, and the prices come from the shops’ product feeds on July 29, 2026.

Compared with Lovetoy Vibrating Spiral Knights Ring — different products

The standard Vibrating Spiral Knights Ring (LV343111, EAN 6970260905695) shares its name, texture, and battery type with the sleeve, but it is a completely different thing. The manufacturer states the product dimensions as 10 centimeters and 3.6 centimeters in diameter, the weight as 69 grams, the total length as 3.9 inches, the maximum inner diameter as 1.4 inches, and the maximum outer diameter as 1.9 inches. The material is TPE, the power source is a CR2032 that is included, and the setting is Single Speed. The circumference increase is stated as 45 percent, versus 55 percent for Dual Purpose Sleeve.

The key difference is that the ring is worn and cannot be used as a masturbation product, while the sleeve does both. The second key difference is the water information: the manufacturer describes the ring as waterproof, latex-free, and phthalate-free, whereas the Dual Purpose Sleeve lacks all three assurances and instead has an explicit warning against submersion. If you want a product you can take into the shower, the ring is the one to choose, despite the fact that it provides less circumference.

The weight difference is also big enough to notice: 69 grams versus 194 grams. The one who wants something discreet to wear gets more from the ring; the one who wants bulk and grip in the hand gets more from the sleeve.

Compared with Lovetoy Add 2" Revolutionary Silicone Nature Extender

If you want the material instead of the vibration, there is an option within the same brand. Add 2" Revolutionary Silicone Nature Extender (LV4213, EAN 6970260906579 in skin color) is, according to the manufacturer, made of platinum silicone, measures 17.8 centimeters and 4.5 centimeters in diameter, weighs 147 grams, has a total length of 7 inches, extends by 2 inches, and increases circumference by 40 percent. It is stated to be waterproof, latex-free, and phthalate-free, and the end can be shortened to adjust the fit.

The differences that actually matter are three. The material: platinum silicone is non-porous and can therefore be cleaned in a way that TPE cannot. Waterproofing: the silicone sleeve is stated to be waterproof, while the TPE sleeve expressly does not. And the function: the silicone sleeve is closed and adds both length and circumference, but lacks vibration and cannot be used as a masturbation product.

In other words: the one who prioritizes hygiene, length, and a long service life should choose the silicone sleeve and accept that it does not vibrate. The one who prioritizes dual use, the open channel, and the low price chooses the Knights Ring Dual Purpose Sleeve and accepts TPE’s limitations. It’s a real choice between two features, not a question of which one is "best".

Against Drip and Wavy — what’s the difference between the textures?

Spiral has two siblings that are identical on paper. Drip (LV314112, EAN 6942063402435) and Wavy (LV314113, EAN 6942063402442) have the same total length of 13.5 centimeters, the same inner diameter of 3 centimeters, the same outer diameter of 6.5 centimeters, the same TPE, the same CR2032, the same Single Speed, and the same 55 percent circumference increase. Even the packaging dimensions are the same.

The only thing that differs in the manufacturer’s data is the weight: Spiral 194 grams, Wavy 195 grams, and Drip 201 grams. The seven-gram difference between Spiral and Drip is a direct result of the patterns putting different amounts of material on the outside, and it doesn’t say anything in itself about the experience. So the choice between the three is purely aesthetic and tactile: the spiral ridges run diagonally around the sleeve, Drip has drop-shaped raised areas, and Wavy has wave-shaped ridges.

So the practical advice is simple. Compare the price of all three EAN numbers before you order — it’s the same product in terms of design and specifications, and shops don’t always price them the same.

Price range: 199 to 259 SEK at three stores

Three Swedish shops sell the item with EAN 6942063402428. Blush Me and SexleksakerOutlet both list it at 199 SEK, while Vuxen lists it at 259 SEK. That’s a 60 SEK or 30 percent difference for exactly the same article number, the same color, and the same packaging.

The inventory situation determines what the range means in practice. Two of the three shops had the product in stock at the price check on July 29, 2026: SexleksakerOutlet at 199 SEK and Vuxen at 259 SEK. Blush Me was also listed at the same 199 SEK but was sold out in the feed. So the difference between the cheapest available and the second-cheapest available was the full 60 SEK, because the two shops with the same price didn’t both have the item on hand.

In this price range, shipping weighs heavily. A sleeve for 199 SEK could very well end up costing more than one for 259 if the shipping cost differs, and most shops have a threshold for free shipping that’s clearly above the product’s price. So always check the total amount at checkout and not just the product price — it’s the single most important piece of advice for products under three hundred Swedish kronor.

The prices in the table above are updated when the shops update their product feeds. The price spread doesn’t come from different variants: all three shops list the item under EAN 6942063402428 or under their own article number tied to that specific EAN number.

For whom is Knights Ring Dual Purpose Sleeve for — and for whom isn’t it?

It’s for you if you want to try a textured sleeve without spending more than a couple of hundred Swedish kronor, and if you actually want both uses—both as a cover during intercourse and as a masturbation sleeve. It’s for you if you prefer a replaceable button cell over a built-in battery, the kind that one day will run out for good. And it’s for you if you want a lot of circumference: 55 percent is more than the 45 Lovetoy lists for the regular Knights Ring and more than the 40 stated for the silicone sleeve.

It’s not for you if you want a product you can rinse under the tap without thinking twice—the manufacturer explicitly advises against submersion and publishes no IP rating. It’s not for you if you want to be able to control the vibration, because there’s only one speed. It’s not for you if you want extra length, because the model makes no claims about that. And it’s not for you if you require an explicit phthalate and latex declaration before purchase, because Lovetoy doesn’t publish any for this specific item, even though they do for several sister products.

One last thing belongs in the decision. TPE is a consumable material in this context. Expect the product to be replaced when the surface starts to feel sticky or when the channel is no longer possible to get clean, and let the price reflect that—199 SEK is a reasonable cost for a product with a limited lifespan, while the same amount would be a bad investment if you expected it to last for years.

Warranty, complaints, and right of withdrawal

Lovetoy does not publish any warranty period for the Knights Ring Dual Purpose Sleeve. The manufacturer’s website expressly targets B2B partners, and there you’ll find item data, carton quantity, and HS code but no consumer warranty. None of the three Swedish stores states any manufacturer warranty for the product either. That in itself isn’t strange for a product in this price range, but it means that it’s Swedish legislation that applies and nothing else.

According to the Consumer Sales Act (konsumentköplagen), you have three years to make a complaint for defects in the goods, regardless of what the manufacturer does or does not commit to. Defects that show up within two years are also assumed to have existed at the time of purchase unless the seller shows something else. It’s the seller—i.e., the store you bought from—who is your counterparty, not Lovetoy in China.

For distance purchases, you also have a right of withdrawal for fourteen days under the Act on Distance Contracts and Contracts Outside Business Premises. Be aware that, in practice, the right of withdrawal is limited for hygiene products that have been taken out of a sealed package—Konsumentverket describes the exception in its guidance on the right of withdrawal. The right to make a complaint for defects applies, however, always—even to an opened package. If you have questions about what applies in your case, Konsumentverket provides guidance via Hallå konsument.

A practical tip that follows from the above: save the receipt and the original packaging until you have tried the product and confirmed that the vibrator works. A dead battery is not a fault with the item and can be replaced yourself, but a motor that doesn’t start with a fresh CR2032 is a manufacturing defect that the store should handle.