SIHOO® M57 Ergonomic Office Chair Adjustable Lumbar Support 3D Armrests Skin-Friendly Mesh Desk Chair High Back

?Features?Adjustable head restraint allows the neck to lean easily and comfortably, adjustable lumbar strengthen bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90°-120° arbitrary backrest adjustment for more than one work positions, any switch 10cm lift, 360 ° Freedom to rotate freely 3D handrail.
?Ergonomic design?SIHOO is advisable 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 go with the flow waterfall arc seating design Thigh strengthen is comfortable, SIHOO will make you more comfortable.
?Material?The aluminium base is steady and durable,having good bearing quality. The silent castors move freely without noise. Double-back-frame design is steady and durable.?Design?SIHOO is the crystallization of the common wisdom of many professionals in human body, physiologist, product designer, mechanical engineer?does its best to make Each and every step comfortable and protected for Each and every customer.
Each and every small part has strict safety quality testing. Cushion have an effect on test, handrail fatigue test, chair foot static pressure test, in step with the strict standards of office chairs.?Warranty?Product warranty period is one year. If there is any quality problem, please contact us. After confirming, we can change the accessory for you. We promise to will give you zero profit product accessories within three years of the warranty period.
Arm Style: 3d Arms; Is Assembly Required: True; Warranty Description: 3 Years; Seat Height: 110.0; Frame Material Type: Metal; Assembly Instructions: Require Assembly