Ideal for providing enhanced sensations on nipples and other body parts! Just put the cup on the desired area and twist, the cup will remain attached. Since this suction device works with a simple twist, it is Silent, simple, and discreet, it can be taken and used practically anyway for on the go Lube is recommended during use for smooth movement and a strong seal to maximize the powerful suction and for optimum comfort. Perfect for bondage fantasies and nipple stimulation Have fun, just stimulate your nipples until they're hard Specification: Material: ABS Color: Clear Size: Opening is 2cm in diameter, tube is 6cm long and entire item is 10cm long Weight: 28g Package included: 1 * Nipple Pump