The Sport Fucker MotoVibe Rev-Cockring revolutionises the construction and use of the popular cock ring by crafting it from super soft, medical grade silicone and motorising it in order to create entirely new sensations and patterns of play. Unlike other silicone rings, the Rev-Cockring is not designed to stretch. Rather, it is meant to be worn like a metal or rigid ring, with a ring size that is slightly larger because it does not expand. The ring features high quality, medical grade material that is both waterproof and phthalate free. With 10 custom vibrations to cycle through, Rev-Cockring wearers will experience a wide range of stimulation and control. Despite the power the Rev-Cockring packs, no batteries are required-it's quickly and easily rechargeable with the included USB cord. Product Features - Vibration with 10 frequencies - Waterproof - Rechargeable - Compatible with all sexual lubricants Care Instructions - Wash before and after each use. - Charge before use - Store seperate from non silicone items.