What makes these chain linked nipple clamps special is that their pressure is adjusted using the chain they're attached to. Just pull on the chain and the nipples increase the pressure. Imagine having the chain attached to a leash and you're able to control the pressure from a distance across the room. Or imagine being right up close and having the cool steel in your hand as you apply the pressure. You can also use the nipple clamps on other parts of the body. The only limit to how to use them is your imagination.
All prices are in USD.