Wheels: TPEShore A: 68R wheel core; Polypropylene Outer wheel: Synthetic rubber with precision dust-proof ball bearings Support metal, chrome-plated, anti-rust, acid-, alkali-resistant, beautiful and durable Thickened metal shackle, pressed with reinforced rivets, built-in steel balls are more flexible and tough< /p> The soft rubber material on the outside of the wheel contains precision bearings, which are smooth, to prevent scratches and are quieter The wheel splinter brake #39; manganese steel is suitable for various dry and wet conditions to ensure the stability of furniture
