Embroidered High Back LeatherSoft Multifunction Executive Swivel Ergonomic Office Chair with Lumbar Support Knob with ArmsThis attractive office chair is loaded with options to maximize your comfort and productivity when you're working long hours. Its high back, integrated headrest and built in lumbar support help prevent back strain. The padded swivel seat is filled with 3" of foam and features a waterfall edge. Turn the tilt tension adjustment knob to increase or decrease the amount of force needed to rock or recline and lock the seat in place with the multi tilt lock