4in/5in Door Rubber Spring Loaded Wheel Universal Spring Casters Uneven Road Swivel Caster

1. Door spring wheel, suitable for uneven road. 2. Spring wheels are non-slip and have a high safety factor. 3. Rubber wheel material, wear resistance, pressure resistance and not easy to wear. 4. Easy to move and roll, make opening and closing gate easy. 5. Strong loading capacity, not easy to deform and long service life.