Lure Adjustable Nipple Clamps with Gold Spikes. These Lure Nipple Clamps are accented with gold spikes for an exotic look and feel. The black coated rubber tips add to the exotic look and provide a comfortable grip. The gold easy to use screws leave adjusting the pressure, literally at your fingertips, to create relentless pleasure and pain. These clamps are ideal for all, from shy beginners to the ceaseless sensation seeking aficionados. Measurements 4 inches overall length, clamps open up to 0.5 inch. Materials Metal, Thermoplastic Rubber TPR, ABS plastic.