Multifunction chair can help bring tranquility to your day with a breathable mesh back and thickly cushioned seat that is fabric-upholstered. Equipped with soft polyurethane pads, even the height-adjustable arms are made with comfort in mind. Back reclines at a three-to-one ratio to the seat angle. Functions also include pneumatic seat-height adjustment from 18-1/2" to 22-1/2", 360-degree swivel, tilt and tilt tension with four locking positions. 26-4/5" diameter, five-star nylon base has 55mm, dual-wheel, hooded casters for easy movement. Seat measures 19-3/4" wide x 18" deep. Back size is 19" wide x 18-1/2" high. Chair meets or exceeds ANSI/BIFMA standards. Weight capacity is 250 lb..