Mesh Back Stool features a breathable mesh back, footring and fabric-upholstered, cushioned seat for comfort. Black plastic frame features a five-star nylon base equipped with casters. Functions includes seat-height adjustment from 32.7" to 40.16", swivel, seat-depth adjustment and backward strength adjustment. Adjustable-height arms with polyurethane pad offer a soft surface to rest your arms. Seat size is 19.1" wide x 18.1" to 20.1" deep. Back measures 17.13" wide x 18.5" high. Distance between arms are 18.5". Weight capacity is 250 lb.