Product Details:Mesh cover sheet and backrestThe 2 inch thick padded seat and backrest of this chair is covered with a mesh cover. In addition to the waist support and frame details, the chair's gently curved backrest has mesh only and is breathable.An explosion-proof thick chassis to accidents and protect Protection.The bottom PU slides the silent -slip wheel flexibly, making it quiet and noiseless, and protecting the floor without damage.Height adjustableYou can easily raise and lower the seat by air pressure control. An adjustable work chair improves seat position comfort, which is important if you're in front of a desk or computer.To raise the seat, lean forward and lose weight on the chair, then pull up on the control handle. To lower the seat, while sitting on the seat, pull up on the control handle until it is lowered.Hope you enjoy shopping