Lorell High-Performance Task Chair, 27-1/4 by 25-1/4 by 41-1/2-Inch, Burgundy Built-in arms adjust in height from 7" to 9" and in width Functions include pneumatic seat-height adjustment from 16-1/2" to 19", seat-glide mechanism, 360-degree swivel, tilt, tilt tension and tilt lock Seat measures 20" wide x 20" deep Built-in arms adjust in height from 7-inch to 9-inch and in width Functions include pneumatic seat-height adjustment from 16-1/2" to 19", seat-glide mechanism, 360-degree swivel, tilt, tilt tension and tilt lock Seat measures 20" wide x 20" deep