High-back chair offers a breathable mesh back that conforms to your body for better comfort. Fabric-upholstered, cushioned seat adjusts from 19-1/10" to 21-1/10" in depth and from 20-1/10" to 23-3/5" in height to get just the right position for optimum working conditions. Back tilt adjusts in three stages. The back height adjusts from 41-1/2" to 47-3/5" as well. Polyurethane-covered arms adjust from 26-3/8" to 32-5/9" high. Other functions include pneumatic seat-height adjustment and 360-degree swivel. Design also includes a 27-3/5" diameter five-star nylon base, black plastic frame and 60mm dual-wheel casters for easy chair movement. Weight capacity is 250 lb. Seat measures 20-1/2" wide x 19-1/10" deep. Back size is 18-3/10" wide x 26" high.