Black Mesh Ergonomic Office Mid-back Task Chair Swivel Executive Computer Chair Fabric Seat task chair, 16-1/2-inch width by 15-3/4-inch depth by 29-1/2 34-1/4-inch height Black mesh upholstery Breathable mesh back Pneumatic seat-height adjustment for easy positioning Ergonomically designed for comfort for those who work at desks for long periods