These must-have man toys are designed with superior materials and powerful and iconic Boneyard-branded design has a sleek soft touch silicone finish and features a superior and durable 3x-stretch. The medical grade 100% silicone rings and non-roll design provide a snug fit that both the wearer and his playmates will appreciate. Unique to themselves, these rings synergize with the wearer, providing endless comfort when wearing under your jeans. You can be assured that they will withstand the punishment of your longest play sessions time and time again. Keep you hard longer & stronger No roll comfort fit Xtreme durability 100% silicone 3X stretch This product is safe with all lubricants, completely hypoallergenic, non-irritating and compatible with sensitive skin.