Expect ultimate towing power and reliability with the Reese Towpower Carbon-Forged Hitch Ball. Featuring acclaimed Interlock 1-wrench tightening, 1 hitch ball hole size, and up to 7,500-lb. capacity, Reese Towpower Carbon-Forged Hitch Ball outperforms imitators attempts at sturdy ball mounts. Your towing capability just became more powerful. Size: 1shank, 2 dia. Load capacity: 7,500 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hitch Balls.