This powerful shock tool is like a puppy trainer for his cock! The wireless remote controls the electro shock, vibration, audio, and light pulses. Just fasten the adjustable Velcro strap around his cock and balls, extend the antenna, and get ready to provide some serious training! Works up to 80 feet away. Measurements adjustable up to 2 inches in diameter. Materials Metal, ABS plastic, nylon, Velcro. Color Black. Requires 1 9V battery, not included.