Maximise your pleasure with the Pierced Nipple TrainersThis pack of one nipple trainer helps you to stretch your nipples for longer, harder, sexier nipples. Designed for use with a nipple piercing, simply place the back plate over your nipple, place the top plate over the back plate and place the bar through your piercing, then you can adjust the stretch via the screw fastening. Do not overstretch your nipple as the piercing may rip - take it slowly.