Seduce Me Nipple Teasers Gold Vibrating Nipple Clamps. Easy push button vibration. Adjustable to fit all nipple sizes. Waterproof vibrations. Phthalates free, RoHS compliant materials Pink Silicone, Vibe ABS plastic. Length 4.25 inches, diameter 0.875 inch. Vibrating nipple clamps require 1 AAA battery for each vibe.