Plastic-back task chair offers a simple solution to your work space needs with a contoured plastic back and arms. Other comfort functions include pneumatic seat-height adjustment from 17-3/4" x 22", 360-degree swivel, tilt, tilt lock and tilt tension. 25" five-star nylon base is equipped with 2-1/2" dual-wheel casters for easy chair movement. Fabric-upholstered seat offers a 1" cushion and measures 17-3/10" wide x 18-1/10" deep. Back size is 18-1/2" wide x 14-1/2" high. Weight capacity is 250 lb.