Advance Engineering 10003 - Adjustable Ball Mount - 2" and 2-5/16" Dual BallOne Mount introduces a new lightweight hitch with up to 10,000 lbs towing capacity. It features a new, easy to use one pin adjustable platform to quickly adjust height in rise or drop positions. 2 and 2 5 16 dual hitch balls fit most trailers and couplers. Fits 2 receiver hitches. Its light weight, easy to use, durable and builds on the One Mount brand of quality mounts and accessories. The last mount you will ever need 2 (8,000 lbs) and 2 5 16