Combine the Kegelmaster with Women's Secret Pleasures Silky Smooth SmartBall Pearls and you have a combination to help train and tone the muscles of the female pelvic floor. The Kegelmaster is anatomically designed to strengthen and tone the women's pelvic floor muscles and enhance sexual responsiveness. The Women's Secret Pleasures Silky Smooth SmartBall Pearls are designed to be worn discreetly during normal activity or sexual activity. History: Ben Wa balls have been used by women since ancient times for pleasure and to help tighten their vaginal muscles. The folks at Fun Factory have brought these erotic antiquities into the 21st century. With their typically playful styling and brilliant German design, theyve used modern materials to evolve time-honored Ben Wa balls into todays SmartBalls. Smartballs look like two slightly elongated Ping Pong balls. They are coated with elastomer, a smooth, silicone-like material used in medical products. Directions: Fun Factory Smartballs are inserted into the vagina and can be worn for several hours. Every move you make causes the metal balls in the Smartballs interior to vibrate. Hence, the vaginal muscles are stimulated, massaged and exercised. The Smartballs even provide a targeted workout of the pelvic floor. They support regeneration gymnastics and can prevent incontinence. Smartballs are made of safe, non-hazardous materials, which are also used in the manufacturing of medical products. They are extremely durable and easy to clean. Smartballs (including their flexible string) are coated with a hypoallergenic elastomed. The unique design and velvety smooth surface are a delight to the eye.