1. Fabric: Made of high-quality imported Porsche Naxi leather + linen velvet. 2. Structure: Imported solid wood frame. 3. Spring: High quality carbon steel serpentine spring. 4. Filling: The seat cushion is made of 45° high-rebound sponge, and the backrest is filled with technical down and nano-rebound particles. Backrest/armrest: 35° sponge with moderate hardness and softness. 5. Tripod: Thick steel plate is computer-cut, cold-rolled and formed in one go, with black sandblasting and anti-rust and anti-oxidation treatment on the surface.