Features: SIHOO Ergonomic Chair: adjustable headrest & lumbar, 3D armrests, 90-126 recline, lift & swivel-work any way you want.

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.

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.

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.

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.