Hitch Critters 1032 Wheelie Hog Animated Ball Hitch Cover and Brake Light SEMA Award Winning Plugs into your existing standard trailer/tow light plug Fits 1 7/8 inch or 2 inch ball hitches Funniest hitch covers and brake lights ever invented Plug into your existing trailer light plug and they come to life when you hit the brakes Simply snap over your 1 and 7/8 inch or 2 inch ball hitch