The Boneyard Ultimate Silicone Cock Ring is the must-have man toy for every mans 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. The rings provide all day comfort when wearing under your jeans or swimsuit to show off that perfect man bulge. They will also withstand the punishment of your longest play sessions time and time again. External Diameter: 2.0 (5.08cm/50mm), Internal Diameter .8(2.03cm/20mm) Thick girth for powerful erection No roll comfort fit Xtreme durability 100% soft touch silicone 3X stretch This product is safe with all lubricants, completely hypoallergenic, non-irritating and compatible with sensitive skin.