Uriah Products UT620320 Chrome Tri-Ball Mount Solid Steel shank with 5/8-inch hitch pin hole Chrome plated to resist corrosion Towing capacity for 1 7/8-inch ball: 2, 000 lbs. Towing capacity for 2-inch ball: 6, 000 lbs. Towing capacity for 2 5/16-inch ball: 10, 000 lbs.