Ergonomic Swivel Mesh Office Computer Desk ChairErgonomic Design: This high quality office chair features a tall backrest with ergonomic backrest support that aligns with the natural curve of the spine, thus, promoting healthy posture and reducing back strain during long working hours. Adjustable HeadrestThe adjustable headrest ensures comfort to your head and neck, and can be moved up or down and adjusted at different angles to fit your needs. The advantage of this desk chair is not only confined