10-Pack Keyholder Numbered Plastic Chastity Locks by XR Brands

Trust is easy to promise and hard to prove, unless the proof is snapped right onto the cage. This pack of numbered plastic chastity locks lets a keyholder confirm at a glance whether their plaything has been playing by the rules.

Setting one up is as simple as sliding the end into the slot, just like a zip tie clicking into place, and it resists any tug or twist meant to loosen it. Once it is on, it stays on. Each lock carries its own serial number, so even a clever swap-out gets caught the moment the numbers do not match. There is no fumbling with keys or worrying about a lost one, since the plastic build means removal is possible in a pinch, but never without leaving proof behind. That built-in tension is part of the appeal: the lock quietly dares them to leave it alone.

Because they are plastic rather than metal, these locks slide onto polycarbonate or plastic cages without setting off metal detectors, and their light, water safe build means they can stay on through a shower without a second thought. XR Brands built this numbered lock set to turn a simple restraint into an ongoing game of trust, checked with nothing more than a glance at the number.

In smooth black plastic, this set of chastity locks is waterproof and made for single use, so once it is tampered with, everyone knows.