About Product:The net weight/gross weight: 39/36 kg\n3 mm thick large size steel structure of the brand: army\nProduct features:\n1 we use heavy steel internal framework. High density and high hardness. All steel parts processing according to the national standard. Polishing treatment coverage in each part of steel.\n2 buffer solid wood and top Chinese polyurethane, in order to ensure comfortable sitting and long time use.\nWe use double coating 3 coating makes the product is more durable