Cock and balls rubber ring set + 3 stretchy, thin rings for stronger erection, prolonged stamina.They are designed to fit on the end of the shaft of the penis and around the testicles. Key Features:3 pieces of cock ring setMaterial: RubberColor: Black Diameter of the rings:60 mm49.5 mm39 mm Note: Use only with water based lubricant! Contact with oils and creams (sunscreen, edible oil, lip balm, etc.) may cause irreversible damage to the control unit and the entire toy. How to clean: Carefully clean the toy before first use and after each use with warm water and a mild soap. The cleaner is especially suited for cleaning erotic toys