This top grain leather manager's chair offers unique styling and a thick padded contoured seat, built-in lumbar support, and contoured armrests for superior comfort with an attractive appearance. Ergonomic features include pneumatic seat height adjustment and a knee-tilt mechanism with lockout and tension adjustment control knob. Specifications are: back height: 26"; seat height: 18.5"-21"; back width: 20"; and seat: 20.5"W x 21"D.