SIHOO M18 office chair ergonomic, computer desk chair with adjustable headrest and lumbar support, high back executive swivel chair for home office (light blue)

["【High Standard】SIHOO office chairs have been certified by BIFMA and SGS and passed the static pressure test of 1136 kg. Our chair can support a weight of up to 150 kg, and the seat cushion, made of a whole sponge covered with mesh, is durable and can be used for a long time.","【Universal Fit】Multi-dimensional freely rotatable headrest protects the cervical vertebra, adjustable arms with PU, 8 cm height-adjustable gas lift, and 360° rotation are flexible and suitable for your office environment. The tilt function with position lock and 126° back adjustment is ready for your office rest.","【Well-padded Seat】With the W-shaped design, you can always sit in the middle of the chair and get the necessary support from the backrest. The front edge of the seat looks like a waterfall and reduces the pressure on the thighs as much as possible while sitting.","【Comfortable and Easy to Assemble】SIHOO ergonomic design is based on the human dynamic digital model. You can also adjust the seat height and position the backrest and armrests flexibly to best fit your posture. Anyone can install this chair in just a few steps with the manual.","【100% Customer Satisfaction Guarantee】Customer satisfaction is our eternal motivation. If a quality issue arises within 30 days, the SIHOO office chair will be returned free of charge. We also promise to provide free product accessories within the three-year warranty period. If you encounter any problems, please contact us and we will offer you a satisfactory solution."]