Lavish Black Pearl Tweezer Clamps. Sparkling with elegant black, pearlescent beaded ornaments, these beautiful adjustable black tweezer-style nipple clamps are easy to use and great for beginners and more advanced users alike. These elegant high-quality nipple clamps adjust at the touch of a finger for a satisfying range of sensations, from a delicate pinch to a moderate sting. Rubber tips give these clamps a comfortable grip that will not slip.