6 Inch Caster Replacement Wheel, Solid Polyurethane Wheels, Heavy Duty Caster-900LB Capacity, Roller Bearing-1/2" Bore, No-Marking, Resistant Chemicals（4 Pack）

6 Inch Caster Replacement Wheel, Solid Polyurethane Wheels, Heavy Duty Caster-900LB Capacity, Roller Bearing-1/2" Bore, No-Marking, Resistant Chemicals（4 Pack）