This set of 4 heavy-duty scaffolding casters is designed to provide smooth, quiet mobility for scaffolds, shelves, workbenches, and other equipment. The non-marking polyurethane wheels are built with a cast iron core and steel body for durability and wear resistance. Each caster supports up to 1,100 lbs for a combined 4,400 lb capacity per set. Swivel action allows 360° maneuverability, while integrated brakes help keep equipment securely in place. Suitable for industrial and household applications alike.