This 125mm polyurethane industrial castor is made of a zinc plated housing which ensures the castor is robust enough and suitable for a variety of environments. This swivel castor featuring a red polyurethane wheel is strong, durable and suitable for moving heavy machinery and equipment. The red polyurethane tyre is bonded onto the polyamide nylon centre making the castor run quietly 787-1408 125mm Swivel Castor Red Polyurethane Wheel