Kink Silicone Covered Metal Cock Ring 50mm e or approximately 1.96 inches from Doc Johnson Novelties. Looking for something stronger? This exclusive design combines the extreme feel of a stainless steel cock ring with the precision fit of durable silicone. Featuring an open sided metal ring sheathed in a sturdy, stretchable band of premium silicone, this design strikes the perfect hard, soft balance of stretch and rigidity. A beveled edge intensifies the pressure in all the right places to complete the experience. Kink by Doc Johnson is an exciting collaboration with Kink.com to create a collection of high quality authentic fetish items suitable for long-term practitioners and new initiates alike.