This prostate vibrator is made of smooth, black, skin-safe silicone. The unique shape of this vibrator is designed for comfortable insertion. In the head of the prostate vibrator is a ball that moves and provides an extra stimulating feeling. You can switch between the 7 different vibration modes and the 4 "tickling" modes. Characteristics: - USB rechargeable - 7 powerful vibration modes - 4 tickling positions - Waterproof - Made of silicone