Our Stainless Round Screws Lockable Cock Ring is the ultimate toy for those who want to take their  chastity game to the next level! Made of high-quality stainless steel, this lockable cock ring weighs in at a satisfying 200g and features screw-on locking mechanism to keep things securely in place. Inner diameter is 30mm and outer diameter is 50mm. Comes with lock and and screwdriver to allow you control how MANY and how DEEP the screws bind. Riveting!