2 ultra-fiber leather cushion, double sponge filled, rebound quickly not collapse.
3 sailboat special mute pulley (can bear 500KG Pulling Force) .
4 imported wear-resistant mute Pu Wheel, with electromechanical high-speed bearings.
5 hardware are stainless steel or high-grade nickel plating process, never rust.
6 selected Super Wood, the surface are sanded twice three times environmental paint treatment, smooth and delicate.
