Alera Nico Mid-Back Swivel/Tilt Office Chair, Black Outfitting any office with a chair designed for comfort and performance can help ensure maximum productivity This office chair design from Alera features black Caresoft upholstery with the look and feel of top-grain leather Built-in lumbar support, tufted cushions, and black padded polyurethane loop arms add to the comfort Other features include pneumatic seat height adjustment, 360-degree swivel capability, knee-tilt, tilt tension, and tilt lock controls, plus a 5-star base for stability Casters enable easy rolling; an ample 21-inch wide seat width is comfortable yet space efficient; some easy assembly required on arrival