Cloud 9 Novelties Kegel Balls White/Purple 35mm. Balls feature a silicone sleeve outside and with weighed steel balls inside for pleasure. Includes one dual ball holder with silicone retrieval loop. Wrapped in body safe silicone.This premium set works on the premise of your own motion providing pleasure. The more you move while wearing them, the more vibrations will be made from the balls moving around inside the smooth velvety shape. Extremely quiet. Velvety smooth silicone. Designed for an easy insertion. Waterproof, non-vibrating quiet Kegel balls. It is believed that a strong pelvic floor or Kegel muscles help to produce better orgasms over time among many other health benefits. This product (with proper use) may help to work these muscles. No batteries are required. Features: perfectly shaped for comfort and pleasure with retrieval cord. Weighted for intense pleasure. ABS plastic and Body Safe Silicone. Waterproof non-vibrating Kegel Balls. Retrieval cord attached for easy removal. 35mm size. Non-porous, flexible and sterilization. 2 steel balls inside, ultra quiet.