Makes a great gift Class III ball mount is rated at 6000 lbs. 5/8in. receiver lock. Includes factory-torqued chrome trailer ball and durable storage case. Balls Included qty. 1, Class Rating III, Ball Diameter Hole in. 1, Ball Finish Chrome, Ball Mount Material Welded steel, Ball Sizes in. 2, Length from Center of Pin Hole to Center of Ball Hole in. 8 1/2, Overall Length in. 12 1/2, Drop in. 2, Fits Receivers in. 2, Gross Towing Weight lbs. 6,000, Rise in. 3/4, Tongue Weight lbs. 600, Hitch Pins Included qty. 5/8 in. receiver lock.