1.Imported fabric, premium top-grain leather, and synthetic leather options available; 2.Interior structure made of high-quality 15mm bent plywood with integrated 3D molding technology; 3.High-density foam, certified to SGS standards; 4.Base made of stamped steel or upgraded aluminum alloy; 5.Equipped with a 50mm diameter auto-return mechanism, available in optional electroplated finishes; 6.One-piece molded die-cast aluminum four-star base, with optional natural aluminum finish; Fabric options: HY fabric is not available.