Nipplettes Purple Push Button Nipple Clamps. Small size nipple clamps are powerful and self-contained. Waterproof vibrations for play outside the bedroom. Waterproof sex toys are safe for use in the bath or shower. Do not submerge for long periods of time and take care to thoroughly dry after each use. Smooth and seamless Rubber Cote vibrating nipple clamps are fully adjustable for comfort and fit by the tension screw located at the top of the clamp. Easy to operate. Push button activation. Vibrating nipple clamps requires 6 watch watch size batteries, 12 included.