SIHOO M57 Ergonomic Office Chair with Adjustable Features and Lumbar Support (Black)

About this item

• 【Ergonomic design】SIHOO 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.
• 【Material】Our home 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.
• 【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.
• 【Features】SIHOO ergonomic chair comes with an adjustable headrest for easy and comfortable neck tilting. The chair also has a lumbar support bracket that can be freely adjusted in height and depth, 3D adjustable armrests suitable for various office tasks, a backrest that can be adjusted from 90° to 126° for different work positions, a 3.15-inch lift mechanism, and 360° rotation for the 3D armrests.
• 【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 every step comfortable and safe for every customer. Every small part has strict safety quality testing. Cushion impact test, handrail fatigue test, chair foot static pressure test, in line with the strict standards of office chair.