Office chair features premium technical suspension on mesh back, adjustable lumbar and ProForm molded foam seat construction. Arms swing out and adjust in height and width for enhanced comfort. Cable control mechanism lets you adjust the seat slider and ratchet back for better positioning. Functions also include pneumatic seat-height adjustment, 360-degree swivel, and three-stage tilt adjustment. Durable aluminum base is equipped with casters for easy chair movement. Weight capacity is 250 lb. Chair is BIFMA rated.