B&w Trailer Hitches Tow & Stow -
This versatile and convenient hitch eliminates the need for multiple ball mounts, so you can use one hitch for multiple trailers. Simply pull the pin and rotate to the desired ball size. Pull the stainless steel pins on the adjustment block and adjust the hitch up or down (in one inch increments) for a safe level tow. It compactly stows under your vehicle when not in use.