100mm 4 fixed castors are made of a zinc plated housing which ensures the castosr are robust and suitable for a variety of environments. The fixed castors, with the white nylon wheel is strong robust and durable and suitable for moving machinery and equipment. The white nylon wheel contains roller bearings making it easier to move whilst maintaining core strength. Fixed castors can be teamed up with swivelling castors and braked castors for maximum control when moving. 100mm Fixed Nylon Caster Wheel 270kg Load Capacity