Onyx Vibrating Butt Plug BlackDESCRIPTION: The onyx vibrating butt plug is designed for a weighted and fulfilling experience. Its name means black gemstone, which inspires its gem like edges that provide a sensational feeling of fullness for the wearer. Made from silky soft silicone, this butt plug's heavy stature allows for uniquely pleasurable use. The powerfully low frequency rumbling vibrations penetrate your pleasure spots from deep within, enhancing every moment.