No BDSM toolbox is complete without one, two or ten sets of nipple clamps. Nipple clamps are the greatest, most intense form of nipple stimulation out there without going into piercing. Originally, nipple clamps were used as torture devices which took advantage of the sheer number of nerve endings in the nipple. This practice has graduated from its crude beginnings into a fine art of hard sex play, including rod clamps, screw clamps, weighted clamps and vibrating clamps. They can also be connected by a chain and worked into a shibari rope bondage scene. The possibilities of delicious pain that can be made with nipple clamps are endless.