Ergonomic Swivel Mesh Office Computer Chair with Support & HeadrestAdjustable DesignThis high back mesh office chair comes with a 3. 39 inch adjustable up and down height and a 45 reversible headrest for good head and neck support. The ergonomic office chair can also be adjusted in height and tilt Angle (90 135) according to individual needs to ensure your comfort. Ergonomic DesignThe office chair has been ergonomically designed to take into account the natural curves and posture of the human body, providing good