Brand: SIHOO Color: Black2 Features: * High quality and easy to install - SIHOO ergonomic office chairs have been certified by BIFMA and SGS. They support a weight of up to 150kg. Anyone can install this chair in a few steps using the manual. * Universal fit - free and multidimensional rotating head pillow to protect the cervical vertebra; The rotation of 10 cm of elevation 360 ° is flexible and suitable for office environments; Rest and correction of the 120 ° post adjustment office. Tilt function with position lock. * Cozy - SIHOO's ergonomic design is based on the human dynamic digital model. You can also adjust the height of the seat, backrest and armrests flexibly in the positions that best fit your posture. * Unique design - seat cushion with the W-shaped design and the front edge of it looks like a waterfall, allowing to sit stably in the center to get the necessary backrest support and reduce leg pressure. The chair designed with rollerblade wheels, which