Provide your employees with a comfortable and economical chair by choosing this mid-back black mesh office chair! Designed with built-in lumbar support that ergonomically contours to the natural shape of the spine, this office chair keeps your employees safe and comfortable while they work to maximize satisfaction and productivity. In addition, this chair offers nylon arms and a thick padded seat with breathable mesh material and CA117 fire retardant foam for greater comfort. For optimum versatility, this office chair features a tilt lock mechanism and tilt adjustment knob so that your employees can customize the feel of their chairs to fit individual preferences. The pneumatic seat height adjustment also helps this chair fit each employee perfectly. Ideal for a wide variety of offices, this chair rests on a chrome finished base with dual wheel casters for easy rolling. Plus, it easily swivels so that you can reach items from all areas of your workspace. Overall Dimensions: Width: 25 1/4" Depth: 27" Height: 42 1/4" Seat Width: 19 3/4" Seat Depth: 19 1/4" Seat Height: Adjustable from 19 1/2" - 25 1/2" Back Width: 19" Back Height: 19 1/2" Arm Height (from seat): 7 1/2" Weight Capacity: 250 lb.