Ergonomic Office Chair with Adjustable Lumbar Support

description This professional ergonomic computer chair gives the office a sense of fashion and makes you feel relaxed.   The backrest with 3 position lockable angles tilts back up to 135°for better work, study and sleep. Thanks to multiple flexible height settings, you can find a more comfortable position according to your needs. The rotatable headrest and up/down armrests provide more comprehensive support for added comfort. Curved mesh backrest and adjustable lumbar support your lower back and achieve relaxation. The back and seat use breathable mesh to promote air circulation and avoid stuffiness. With a stable base and premium gas lift, the computer chair performs well in safety, stability and durability. Flexible casters make it easy to move and bring convenience.   If you are looking for such a product, do not hesitate to buy it!   Comfortable Sitting Experience: The seat cushion is filled with high-density sponge, which can greatly relieve the pressure on your buttocks. B