· 7 Thrusting & Spinning Modes · Realistic TPE · One-click climax mode: From 0 to 100 · Detachable sleeve: Easy to clean · USB rechargeable · Discreet Packaging & Reliable ServiceDARK KNIGHT features a high quality rotating motor and exquisite workmanship. The use of ball bearing rotation eliminates the problem that similar products on the market are prone to-jams that are very painful. The movement and rotation combine for a great sensational sexual experience, it also can be used as penis trainer tool to prolong sexual endurance.