Metalhard stainless steel nipple torture clamps are designed to gradually stretch the nipples. Using Japanese clamps (also called butterfly clamps or clover clamps) and a wing nut you can stretch your submissive's nipples in preparation for other punishments. They can be individually regulated to increase or decrease the damage inflicted on the nipples. It is a very cruel and original device, perfect for anyone who wants to experiment with nipple torture.
This bondage device for nipple torture cannot be missing in the most demanding dungeons.