Triball Hitch or mount Detailed Product Description Triball Hitch or mount Instead of changing the ball on your hitch, use our tri-ball hitch. Just pull-out and rotate the 2 square shaft to the correct size ball. Three ball sizes: 1-7/8, 2 and 2-5/16. Uses black welded steel towing balls, black powder coat finish, 5/8 pin holes. Tri-Ball Mount