The Boneyard Ultimate Silicone Cock Ring is the must-have man toy for every man's arsenal. The premium donut shaped ring is designed with superior materials and production thus increasing both comfort and lifespan. The powerful and iconic Boneyard-branded design has a sleek soft touch silicone finish and features a superior and durable stretch.External Diameter 2.0” (50mm) Internal Diameter .8” (20mm)