High-back chair offers breathable mesh on the back and seat that conform to your body for better comfort. Seat adjusts from 19-1/10" to 21-1/10" in depth and from 19-2/7" to 22-4/5" in height to get just the right position for optimum working conditions. Back tilt adjusts in three stages. The back height adjusts from 26" to 28-5/9" as well. Polyurethane-covered arms adjust from 10-3/4" to 13-9/10" in height. Design also includes a 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.