Nipple clamps can be applied to the nipples of either men or women. But this item is for women only! They create pain/pleasure by restricting blood flow from erect nipples by applying pressure to them. Most nipple clamps are adjustable allowing the user to determine the amount of pressure. PHS International makes and sells a variety of different types of nipple clamps these include; jaws clamps, alligator clamps, barrel clamps, tweezer clamps, press clamps; plier clamps, wide tip tweezer clamps, weighted clamps, and criss cross clamps. Nipple Clamp Y Style 3 Tweezer Ends Pink: one for each nipple plus one for the clitoris. All of nipple clamps are made of nickel plated steel and are animal product free. They feature protective plastic covers which are skin safe and help to keep the metal from digging into the nipple. With Tweezer Clamps: With Tweezer Clamps: Tweezer clamps are attached to the nipple by slowly sliding a small bar up the tweezer. They can be worn very loosely and without a lot of pressure applied to the nipple. Tweezer clamps are made of steel. The clamps feature a protective rubber covering to protect your nipple and clitoris. This covering is 100% rubber which is skin safe and animal product free. The actual tweezer clamp is 3 inches in length. The chain that connects one clamp to the other is 12 inches and is also steel. A jump ring at the center of the chain connects a third clamp hanging on the end of another 12 inches chain. This clamp can be attached to the clitoris.