Upgrade your workspace comfort with the Portland Mesh Office Chair with 4D Lumbar Support. This chair features a fully flexible design, including adjustable lumbar support that moves up and down and forwards and backwards. It includes a rotating and height-adjustable headrest with adjustable tension for optimal comfort. This swivel chair features an adjustable height between 43-51cm, allowing you to sit at your needed level. The chair is designed for comfort with a padded seat and mesh back, and it is easy to move around with its five wheels.