Ergonomic Headrest Desk Chair - The headrest can be adjusted up, down and rotate, which provides comfort support and eliminates the neck fatigue for sedentary people. Adjustable Swivel Office Chair - 3 position tilt and lock backrest and adjustable lumbar support provides best support for anyone. Ventilated Mesh Back Desk Chair - A fully breathable, durable mesh backrest allows air to circulate to keep you cool while sitting. Comfort Features Office Chair - The contoured backrest design, soft mesh padded seat and adjustable lumbar support, relieves tension in the lower back, preventing long term strain. Office Desk Chair - We offer a 3 months money back guarantee. If you are not satisfied for any reason you can return it for a full refund(including the round trip postage), and you will have nothing to lose.