Heavy duty 100mm industrial nylon castors are made of a zinc plated housing which ensures the castors are robust enough and suitable for a variety of environments. The swiveling casters, with the white nylon wheel is strong robust and durable and suitable for moving machinery and placing equipment on these castors. The white nylon wheel contains roller bearings making it easier to move whilst maintaining core strength. Our industrial castors that can carry 200kgs each! 100mm Industrial Castor White Nylon Wheel