Combine the pleasure and arousal these nipple enhancers give whilst massage cupping your breasts! Be amazed at how amazingly simple and effective these suction cups work! Simply place the suction cups over the desired area and twist the handle manually to attach the cups. The OUCH! SUCTION CUP NIPPLE ENHANCERS are made of solid high-grade plastic. are executed in a white/transparent colour and come as a pair in a choice of sizes: S. M and L! insertable up to 4.05 inches with a 1.65 inch diameter. made of High-grade plastic.