4pc Replacement caster for 300LB Folding Platform Cart

Impact-resistant polyurethane caster runs smooth on rough, chip-littered floors, oil and grease. This polyurethane caster stands up to heavy use and won't crack with a heavy load. Polyurethane casters are ideal for indoor use. Solid polyurethane wheel with smooth tread 300 lb. load rating Zinc plated steel yoke and plate Compatible with SKU: 85-180