Hitch Critters Animated Ball Hitch Cover and Brake Light - Black Widow - The light-up target also provides a functional brake light, for extra visibility and safety. Fits over any standard two-inch hitch ball and plugs into your standard trailer lights. The legs move with road vibration. 8 Wiggling Legs. 3 Ultra Bright Red LEDs. Polished Chrome Finish. Additional Details ------------------------------ Product description: Hitch Critters Animated Ball Hitch Cover and Brake Light - Black Widow - The light-up target also provides a functional brake light, for extra visibility and safety. Fits over any standard two-inch hitch ball and plugs into your standard trailer lights. The legs move with road vibration. 8 Wiggling Legs. 3 Ultra Bright Red LEDs. Polished Chrome Finish.