This is a Buyers hitch, combination ball, the ball’s size is 2 5/16″. BuyersProducts 8 Ton Combination Hitch combines both a ball hitch and pintle hookinto one product. It allows you to pull loads that have either a coupler or adrawbar/pintle ring without having to change hitches. The hitch is ideal forcontractors, tradesmen and haulers who tow a range of construction equipment. 2 5/16″ Ball Handles multiple towing needs with its interchangeable design Ideal for a wide range of light to medium duty trucks with a maximum gross towing weight of 16,000 lb Versatile design can accommodate a variety of trailer heights Tough, interchangeable forged steel hitch ball Durable and long-lasting drop-forged construction, with a corrosion-resistant powder-coated finish