SIHOO High Back Ergonomic Office Mesh Desk Chair with Armrest & Lumbar Support, 300lb, Gray

The M57 ergonomic office chair is an improved version of the M18 ergonomic office chair. The biggest change of the M57 is that the seat cushion uses a PE polyester mesh, so it is not only soft but also very breathable. The design of the waterfall cushion and the sponge in front of the cushion can effectively relieve the pressure on the thigh and reduce the pain in the thigh. The improved 3D armrest can be moved up and down, front and back, and left and right, so that it can better meet the actual needs of users. In addition, the original design is still retained, the PU casters that do not damage the floor, the adjustable lumbar pillow and other ergonomically designed functions. Furthermore, product warranty period is three years. If there is any quality problem, please contact us. After confirming, we will change the accessory for you. We promise to provide you with zero profit product accessories within three years of the warranty period.

• ★ 【Perfect for Long-time Sitting】SIHOO ergonomic office chair. The office chair waterfall-edge design with high elasticity styling foam. Stretchy and breathable mesh backrest and seat cushion.Durable, Long Lifespan, Transformation Resistant, Abrasion Resistant, Great for sitting for long periods of time. 

• ★ 【Ergonomic Design】SIHOO M57 ergonomic office chair is recommended by Ergonomics Application Association. SIHOO's ergonomic design is based on the human body dynamic digital model. The ridge backrest and the human spine are exactly the same. The close fitting helps release the spinal pressure. The flow waterfall arc seating design Thigh support is comfortable, SIHOO will make you more comfortable.

• ★ 【Features】SIHOO ergonomic office chair with adjustable headrest can make neck tilt easily and comfortably, adjustable lumbar support bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90°-126° arbitrary backrest adjustment for multiple work positions, any switch 3.15 in lift, 360 ° Freedom to rotate freely 3D handrail.

• ★ 【Material】This SIHOO M57 office chair is perfect for the home office. The home office desk chair has successfully passed the rigorous tests of BIFMA and SGS. The office desk chair aluminum base is stable and durable, bearing quality is good. Silent casters move freely without noise. Double back frame design, stable and durable.

• ★ 【Easy for installation】The office chair is packaged with instructions, labeled parts, additional screws and rubber gloves and can be installed in half an hour.

• 【Warranty】Product warranty period is three years. If there is any quality problem, please contact us. After confirming, we will change the accessory for you. We promise to provide you with zero profit product accessories within three years of the warranty period.