1.Ball dia: 1-7/8", 2", 2-5/16" 2.Shank dia: 3/4", 1", 1-1/4" 3.Shank length: 1-1/4", 2-1/8", 2-5/8", 2-1/16" CHROME FINISHED HITCH BALL BALL DIA1-7/8", 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.FINISHINGzinc finishing, chrome finishing, black powder coated, glass blastedMATERIAL#1020 #5140 #1045 etc.TOWING CAPACITY3000lbs, 5000lbs, 6000lbs, 8000lbs, ...