The TowSmart Tri-Ball Mount provides a quick and easy adjustment between a 1 7/8”, 2” or 2 5/16” hitch ball size without the hassle of installing a different ball mount. The permanently affixed hitch balls eliminate the trouble of removing and reinstalling a new hitch ball. The Tri-Ball Mount will accommodate hitch ball sizes without needing to install or own an entirely different ball mount. The heavy-duty steel construction is extremely durable with a black powder coat finish that is corrosion resistant. It provides a hollow yet durable steel shank that fits in 2” square receiver tubes.Specs: fits 1 7/8", 2", 2 5/16" couplers, 2" x 2" receiver