1.ball dia: 50mm,1-7/8", 2", 2-5/16", 2.surface: chrome, zinc, powder coating, polished, etc 3.marking: customer decide hitch ball BALL DIA50mm, 1-7/8", 2", 2-5/16"SHANK DIA3/4", 1", 1-1/4"SHANK LENGTH1-1/4", 2-1/8", 2-5/8", 2-1/16", etc.SURFACEzinc finishing, chrome finishing, black powder coated, glass blastedMATERIAL#1020 #5140 #1045 etc.TOWING CAPACITY3000lbs, 5000lbs, 6000lbs, 8000lbs, ...