Safco Products Company Mid-Back Chair, 27"x30-1/4"x36-1/2"-40-1/2", Gray Mid-back chair is designed especially for multi-shift intensive use environments, especially for the big and tall person. Offers a 500 lb. capacity. An extra wide and deep seat with thick-cushioned foam provides long-term comfort. Rated for 24/7 use. Mid-back chair features a swivel seat with pneumatic height adjustment, tilt lock and tilt tension along with an oversized five-star base with casters for stability. Meets or exceeds ANSI/BIFMA standards. Arms are sold separately.