This Black Ergonomic Task Chair has contoured cushions with lumbar support. It is elegantly upholstered with Chenille fabric. The height adjustable arms provide comfortable and versatile arm rests that can suit your personal preferences. It has an upright locking position feature, providing comfortable back support. The pneumatic adjustable gas lift allows for easy seat height adjustment, to help you find the personalized sitting style that suits you and your work environment. The large 27’’ black nylon base provides added stability to the chair. The hooded double wheel casters make it easy to move and shift directions.