Feature:Equipped with a breathable mesh cover and comfortable seat cushion, it is specially designed for office workers who value stability and comfort.The office chair's ergonomic backrest mimics the shape of the human spine, reducing your back pain and discomfort.Sponge density - 50g/cm3, good elasticity and breathability, dense mesh backrest, breathable and sweatproof.Adjustable headrest, armrests, lumbar support, and seat height, suitable for different heights.Sturdy nylon feet and rugged metal construction pass 150kg pressure test. Specification:Colour: BlackMaterial: plastic + sponge + metalChrome base with 5 plastic wheels Scope of supply:1x Chairs.