Ouch Vibrating Nipple Clamps Black. They make your nipples tremble like an earthquake! These 1 speed vibrating nipple clamps of Ouch! gives your extra pleasure, for him or her. You can use the nipple clamps for your naughty secrets or for constant stimulation when you are making love. Who says you can have too much fun? <br /><br />Specifications product size: length 9cm, clamps 35mm. Batteries required 3 AG13/LR44. Material metal nickel free, ABS plastic.