Managerial mid-back chair features a mesh back chair and mesh fabric 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. Available in black frame only. Meets the CA117 fire-retardant standard.