Reese Towpower Zinc Interlock 1 7/8" Hitch Ball is cold forged steel for superior strength. Engineered to meet all VESC (Vehicle Equipment Safety Commission) regulation V-5 safety requirements. This hitch ball is 1-7/8 inch in diameter with a 3/4-inch diameter shaft that is 1-1/2 inch long and rated at 2,000-pound capacity.