Lorell Multi-Task Chair,High-Back,26-7/8"x26"x39"-42"-1/2",Burgundy Deep molded seat and back of this high-back multi-task chair provide added comfort. The chair also features pronounced lumbar support with 2" back height adjustment. Posture control allows for pneumatic seat-height adjustment, back height adjustment, seat depth adjustment, 360 degree swivel, tilt, tilt tension control, back forward/back pitch adjustment that provides free-floating or locked positioning. Adjustable height and width arms provide additional comfort. Available in black frame only. Abrasion rating is 30,000 cycles. The seat back is 20-1/2" wide x 7" thick x 23" high. Seat-to-floor dimensions are 18-9/10" to 22-2/5".