It creates a tow attachment point at the center of your boat, behind your outboard or stern drive. This tow harness is perfect for pulling a skier, wake boarder, knee boarder or 1 rider tubes. Simply clip it onto your boat with the hooks provided, and attach your ski or tube rope. A 6” float keeps the attachment loop floating on top, away from your propeller. 12 feet long to fit larger boats and pontoons. Snap hook opening width 7/16”. Yellow / Red.