Feature: 1. Strong Support: Thickened power steel plate together with double ball bearings ensures strong load capacity. 2. Small Vibration: Spring clamp can absorb the shock when the door caster rolls on a bumpy or rough surface. 3. Good Materials: Made of premium rubber and stainless steel, providing high mechanical strength for long-term use. 4. Easy to Install: The 3-hole design allows for convenient installation using fasteners. 5. Flexible Use: Suitable for residential doors and industrial gates, rolls smoothly without damaging the floor. Specification: Item Type: Spring Loaded Gate Caster Product Material: Stainless Steel Wheel Material: Rubber Wheel Diameter: Approx. 100mm / 3.94in Wheel Width: Approx. 25mm / 0.98in Use Scenario: For door Package List: 1 x Spring Loaded Wheel