High-back chair offers contemporary styling with incredible comfort and support with breathable and comfortable black mesh back. Mesh fabric seat cushion has two layers of padding for increased comfort. Padded arms adjust in height. Sturdy base ensures strength and stability. Functions include pneumatic seat-height adjustment, 360-degree swivel, dual-action synchro-tilt, tilt tension and tilt lock. Included urethane arms adjust in height. Frame is available in black only. Five-leg base is made of molded plastic and has hooded, 2" diameter, dual-wheel casters. Seat measures 21" wide x 20" deep while the back is 19-1/2" x 24" high. Distance between arms is 19-1/2". Seat to floor measures 18-1/2" to 23-1/2". Usable seat depth is 19-3/4".