This is Solid Shank Heavy Duty Dual Ball Truck Ball mount by Curt. This Adjustable Ball Hitch features both 2" and 2 5/16" Towing Balls that can be easily reversed for many sizes of trailers. This is the most solid and heavy duty ball mount on the market. In terms of customer confidence, just holding this Adjustable Hitch you can feel the weight and know it is built to haul heavy loads. With a 14,000lb Capacity, this mount is sure to handle whatever you can tow. Included with this Ball Mount is an wrench used to tighten the Adjustable Head after the height has been set. This added feature allows the user to prevent rattle which towing, a common occurrence with other adjustable mounts. Included with this mount is also a 5/8" Hitch pin to secure it into your vehicles 2 inch receiver tube.