Lorell mid-back swivel mesh chair – black managerial mid-back chair features a mesh back and seat. Ergonomically designed mid-back matches the natural curvature of a person’s back. Arms adjust in height and width. Mid-back chair also offers a five-star nylon base, pneumatic seat-height adjustment (17″ to 21″ high from the floor), 360-degree swivel, back-height adjustment, tilt and asynchronous three-lever control. Frame is available in black only. Weight capacity is 250 lb. Chair meets the ca117 fire-retardant standard and offers an abrasion rating of 60,000 double rubs (astm-d-4175).