Sweet Torture nipple clamps from the Fifty Shades of Grey Official Pleasure Collection. Nipple clamps made of silicone. Place the waterproof clamps on the nipples and tighten the stopper until you've reached a pleasurable and comfortable pressure. Turn on the vibrations with a simple press of the button. It's a great feeling to have the vibrations spread through the entire breast from the nipple. The nipple clamps come with the required battery included.