Features 1. Spring loaded design allows gates to open and close freely by automatically adjusting height on uneven ground while eliminating gate sag. 2. Heavy duty caster wheel has a maximum load capacity of 110 lbs and is resistant to exposure to chemicals and solvents. 3. Shock absorption provides smooth rolling and makes opening and closing the gate easy. 4. Constructed from premium rubber material and metal for strength and durability. 5. Heavy duty universal mounting plate with 2 holes for easy attachment to wooden gates or horizontal and vertical rails of tubular farm gates. Specification Material: Rubber + Metal Weight: Approx. 1034 g / 36.5 oz Caster Diameter: 100 mm / 4 in Load Capacity: Maximum 50 kg / 110 lbs Package List 1 x Gate Wheel Note Please allow slight variation due to manual measurement.