B&W Tow & Stow hitch ball mount gives you adjustability from 4.5″ of drop to 4″ of rise on those vehicles equipped with a 3″ receiver shank. The unique design of this adjustable ball mount allow you to adjust height, rotate ball size or stow under the vehicle. The class IV rating adjustable ball mount offer a 21,000 LB. GTW and 2,100 LB. VTW.