Superior Caster Corp Heavy Duty 10" Diameter Swivel Caster 1300LB Capacity, Supreme Rubber Wheel 57-HEAVY DUTY FORGED SERIES 1,300 LB CAPACITY RH-SUPREME RUBBER WHEEL 10-10" WHEEL DIAMETER L-3" WHEEL WIDTH S-SILVER STEEL 70 -1/2 TAPERED BEARINGS 19-4