1、Strong Load Capacity: Thickened matte black power coating plated on stainless steel, double ball bearings bring strong load capacity 2、Shock Absorber: Built in spring clamp, which can be used as a shock absorber when the door caster rolls on a bumpy or rough surface 3、Reduce Pressure: Spring load can reduce the pressure of door hardware and extend the service life of door posts and hinges 4、Silent Rubber Materials: Adopt good quality silent rubber materials, which has the advantages of high mechanical strength, shock absorption, wear resistance, and no damage to the floor 5、Non Corrosion And No Rust: The bracket is made of good quality stainless steel material, non corrosion and no rust, durable for a long service life 1 x Gate Caster Item Type: Gate CasterProduct Material: Stainless steelWheel Material: RubberWheel Diameter: Approx. 126mm / 4.96inWheel Width: Approx. 33mm / 1.3inUse Scenario: Door