Ride the Wave is one vibrating Silicone Butt Plug with 7 pre-programmed modes for meeting different needs. It is soft & firm for maximum comfort & anal exploration. Use the Red-heart function button to adjust the ultimate vibration you want. Ride it for an erotic anal fantasy. Black & it uses : 4 watch batteries (included). This is made of 100% silicone & does not contain latex or phthalates. So a great toy for those with latex allergies.