Mid-Back Task Chair delivers reliable support & convenient functionality to enhance your workday. Tight, breathable mesh on the back matches the fabric color on the cushioned seat for a continuous look. Padded arms adjust in height. Functions include adjustable seat height from 18-1/2" to 22", 360-degree swivel, tilt tension adjustment & tilt / tilt lock. The 12-3/5" diameter, five-star nylon base is equipped with dual-wheel casters for easy movement. Seat measures 50-1/2" wide x 17-1/2" deep. Back size is 18-1/2" wide x 17-5/7" high. Weight capacity is 275 lb.