This nipple protraction device is designed to clamp down on and gradually stretch the nipple. Comprised of a stainless steel frame supporting a dangling clover clamp, it grips tighter the further the nipple is stretched. Simply attach the clamp just behind the nipple and twist on the wing nut. As the clamp is pulled upwards, the grip increases, stretching the nipple. This unique piece can be used by both men and women, ensuring the most intense nipple sensation. Measurements: Frame measures 2.10 inches in diameter, 6.5 inches in length; Nipple extractor extends to a top length of 2.5 inches. Stainless steel includes (2) nipple devices.