Keep yourself or a partner in a sexy pinch with the ultra powerful vibrating nipple clamps The twist down design of these fun little toys offer delightful versatility and pleasure for every experience level. Soft vinyl coats the tips to enhance grip and offer more comfort during use. Each clamp has a powerful vibrating bullet attached, and is powered by a variable speed controller. Simply attach the clamps until they are snug, then turn up the vibration. Enjoy stimulating play with these sexy clamps Measurements: 3.5 inches in length, 1 inch in width. Material: ABS plastic, vinyl, metal. Color: Black. Note: Requires (2) AA batteries, not included