METAL HARD - NIPPLE CLAMP WITH TANKPut your submissive or slave through unique torment with a set of nipple clamps that allow you to add weight in an unusual way! In the style of butterfly clamps, or clover clamps, these attractive clamps become tighter as they are pulled. The rubber tips ensure that all the pain is in the form of pleasure and that they maintain their grip. To increase the weight, simply fill the little hanging buckets with water, lube, sand, rocks, or whatever your