Selected materials: This reliable task chair is mainly built of quality PU cover, sponge padding and solid iron parts to produce good stability and durability. It is capable of up to 150kg/330.7lb for your safety and long-term use. Premium PU leather creates a smooth and firm texture, featuring waterproof, easy-to-clean and deformation resistant. Adjustable seat height: You can adjust the seat within the height range of 127cm/50-137cm/54 to accommodate people of different ages and heights. The flexible backrest will give you a 180-degree back leaning comfort. Soft feel armrests offer extra comfort. Ergonomic gaming chair: With an adjustable seat with a comfortable height range, it boasts restful backrest, relaxing headrest and good lumbar support to upgrade the level of comfort. Easy assembly: The package includes few chair parts, connection fittings, handy tools and illustrated installation instructions. As some parts are preassembled, it generally takes less than 30 minutes t