Perfect Fit Xact-Fit #21 Silicone Cock Rings 2 Pack 53.5mm

A More Generous 53.5mm Fit With Premium Silicone That Stretches Just Enough Without Losing Its Shape

Finding a cock ring that feels properly snug shouldn't involve gambling on another one-size-fits-all design. The Perfect Fit Xact-Fit #21 gives you a defined 53.5 mm internal diameter and silicone engineered to balance firmness with practical flexibility.

This pack contains two identical #21 rings, each made from plush soft-touch silicone that stretches enough for easier fitting and removal without becoming overly elastic. The result is a more predictable fit than you'd get from an ultra-stretchy generic ring.

Each ring is stamped with its size, so once you've discovered that #21 works for you, there's no guessing which one to reach for. Use one and keep the other as a spare, or explore different positioning once you're comfortable with your preferred fit.

“When 51mm feels a little too snug, that extra 2.5mm could be exactly what you've been looking for.”

Perfect Fit Xact-Fit #21 Cock Ring Key Features:

✅ Two Identical #21 Rings: Both rings are the same size, giving you two matching options rather than a graduated sizing assortment.

✅ 53.5 mm Internal Diameter: Each ring has a defined starting diameter of approximately 53.5 mm, making it one of the larger options in the Xact-Fit range.

✅ 168 mm Internal Circumference: The published circumference provides a second measurement to help you compare sizes before choosing your fit.

✅ Controlled Silicone Stretch: The rings flex during fitting and removal without the extreme elasticity of highly stretchy generic cock rings.

✅ Plush Soft-Touch Silicone: Smooth premium silicone provides a softer alternative to metal while maintaining a substantial, supportive feel.

✅ Precision Xact-Fit Sizing: The wider Xact-Fit range uses nominal 0.1-inch increments, allowing smaller adjustments between sizes than conventional small, medium and large systems.

✅ Clearly Stamped Size: Both rings are marked #21, making identification straightforward if you own other sizes in the range.

✅ Strong, Durable Construction: Perfect Fit designed the silicone to combine strength with enough flexibility for practical handling and repeated use.

✅ Stackable for Experienced Users: The rings can be combined, although stacking increases constriction and is best approached cautiously after becoming comfortable with a single ring.

Product Details

The clever part of Xact-Fit is its approach to sizing. Rather than expecting a handful of generic rings to accommodate everyone, Perfect Fit created a range of closely spaced internal diameters so you can find a more suitable starting size.

Size #21 measures approximately 53.5 mm internally, sitting between #20 at 51 mm and #22 at 56 mm. That relatively small difference matters when you're choosing a cock ring based on actual measurements rather than guesswork.

The silicone is firm enough to maintain a defined shape but flexible enough to make fitting and removal more forgiving than rigid metal. You still need to select a suitable size, because controlled stretch doesn't mean every ring will fit every body.

Both rings in this pack are identical. If you've already discovered that #21 gives you a comfortable fit, having a matching second ring makes considerably more sense than purchasing another assortment of sizes you might never use.

Best For

Best for someone who prefers a larger cock ring and already knows that approximately 53.5 mm is a suitable starting diameter. If you've tried Xact-Fit #20 and found its 51 mm opening slightly too restrictive, #21 provides a roomier alternative without making a dramatic jump in size.

It's also a strong option for experienced cock ring users who appreciate precise sizing but prefer the softer feel of silicone over rigid metal. The controlled stretch offers some forgiveness while keeping the fit more predictable than a highly elastic ring.

The matching two-pack is particularly useful once you've settled on your preferred Xact-Fit size and would rather have a spare than another collection of different diameters.

Not Ideal For

Not ideal if you're completely unsure what cock ring size suits you. Both rings are #21, so there's no smaller or larger alternative included if 53.5 mm turns out to be unsuitable.

It's also not designed for anyone who wants adjustable tension. The rings have a fixed starting diameter with controlled stretch, rather than a slider, buckle or quick-release system.

If you prefer extremely stretchy rings that accommodate a broad range of sizes, Xact-Fit's more structured approach may feel firmer than expected. A graduated sizing kit may be more useful if you're still discovering what feels comfortable.

Size & Details

ℹ️ Xact-Fit Size: #21

ℹ️ Internal Diameter: Approx. 53.5 mm

ℹ️ Internal Circumference: Approx. 168 mm

ℹ️ Quantity: 2 identical rings

ℹ️ Material: Premium soft-touch silicone

ℹ️ Stretch: Controlled flexibility with a relatively firm fit

ℹ️ Size Identification: #21 stamped on each ring

ℹ️ Colour: Black

ℹ️ Power: Manual, no batteries required

What's Included

ℹ️ 2 x Perfect Fit Xact-Fit #21 Silicone Cock Rings

Care Note: Clean before and after use with warm water and mild soap or a quality toy cleaner, then dry thoroughly before storage. A small amount of water-based lubricant can make fitting and removal easier. Start with one ring and avoid prolonged constriction.

Never sleep while wearing a cock ring. Remove immediately if you experience pain, numbness, tingling, unusual coldness or significant colour change.

Shop With Confidence

Perfect Fit Xact-Fit #21 is a smart choice when you want a more generous 53.5 mm starting size without sacrificing the defined fit of a precision cock ring. Two matching rings, premium soft-touch silicone and controlled stretch make this an excellent alternative to rigid metal or overly elastic one-size designs.

Backed by over 25 years of bringing Aussies pleasure and confidence, we are here to keep it simple, discreet, and genuinely worth it.