Executive high-back, swivel chair combines engineered durability with luxurious cushioning to create comfortable designs that last. Quality, visco-elastic memory foam in the seat cushion provides superb comfort. Memory foam reduces pressure points, responding to contours of the body for lasting comfort over extended-use periods. Chair design offers laminated hardwood with urethane top pads, loop arms, five-star base with wood caps, and fully upholstered outer back. Dual-wheel, hooded casters roll effortlessly and silently. Functions include pneumatic seat-height adjustment from 16-3/4" to 21-1/4" high from the floor, 360-degree swivel, tilt, tilt tension and tilt lock. Distance between arms is 22-1/2". Usable seat depth is 18-1/2". Seat measures 22" wide x 21" deep. Back size is 22" wide x 25" high. Chair is certified by SCS to be in compliance with specific air quality emission requirements and meets or exceeds ANSI/BIFMA and ISTA performance standards.