Product description 1-7/8" Hitch Ball with 1" shank diameter. Shank Length is 2-3/16". 5,000 lb. weight capacity. The U-Haul hitch ball has more safety features than any ohter hitch ball in the towing industry. Industry leading safety cotter pin. Only U-Haul has a minimum 5,000 lb. rating on all hitch balls! Hardened flat washer instead of a lock washer. Exclusive clamp indicating fastener.