Adjustable aluminum ball mount with 3 independently  interchangeable hitch-balls included: 1 7/8″, 2″ and 2 5/16″ dia. The product is rated for towing 12, 000 lb. Of gross towing weight. It has a 6″ drop distance and 6 3/4″ rise distance adjustable in 1″ increments. Comes with (2) locking hitch-pins that are keyed alike to prevent theft.