Extended height chair with adjustable footring features a 4" deep contoured seat for full comfort. Adjusts from 23" to 33". Upholstered in 30 percent polyester and 70 percent Olefin. Functions include pneumatic seat-height adjustment, back height adjustment, seat depth adjustment and 360 degree swivel. Chair holds 250 lb. 25" five-star base features 2" dual wheel, hooded casters. Seat size is 17-3/4" wide x 16" deep. Back size is 16-1/4" wide x 14" high. Chair meets or exceeds ANSI/BIFMA standards. Available in black frame only.