Black Knight Black Vibrating Cock Ring from Zero Tolerance. This bold, black cock ring delivers harder erections that last longer while giving her a tantalizing ride she will never forget! The powerful motor is easily controlled with one simple button, and its heady buzz stimulates her primary erogenous zone with pleasure nubs that hit the right spot every time. Clean with Zero Tolerance toy cleaner and a warm water rinse. Features: Silicone cock ring for longer lasting, harder erections. Strategically placed tickling nubs for her pleasure. Great for simultaneous orgasms. Made from creamy smooth silicone. Bullet vibrator made from durable ABS Plastic. Powerful 1 speed motor. Easy to use one button control. Length 2.5 inches, depth .8 inch, width 1.66 inches. Weight .5 ounce. Bullet vibrator requires 2 AG3/LR41 batteries, included. Phthalate free and latex free. Waterproof vibrations and submersible. Warranty included.