【Ergonomic Office Chair】The design of the backrest with separate lumbar support can actively fit your waist, fits the shape of the human spine better. Providing you with reliable scientific ergonomic support. 【Comfy and Breathable】Our mesh computer chair is made of breathable high-stretch fabric that resists abrasion and deformation. The soft thicker cushion seat helps to ease the pressure of sedentary, enabling comfortable long hours of sitting. 【Space Saving】Folding the padded arms up to 90°, you can push the home office chair under the desk to save space smoothly. Suitable for office, meeting room, gaming room, home, etc. 【Multiple Adjustable Design】Pneumatic seat-height adjustment from 16.6"-20.5" for different people; 4.3" heigh adjustable headrest with 30° rotation; 90°~ 135° tilt tension for you to have a rest. Max capacity: 300 LB. Assembly of the mesh chair is quick and easy, taking only about 10-20 minutes. Our brand: Razzor, committed to creating a multi-functional office chair that bring comfort. Compared to traditional office chairs, this office chair pursues more ergonomics. In addition to the wide backrest, a lumbar support is added to support the waist, which fits the spine to disperse pressure and creates a straight posture; The backrest is made of breathable mesh, which is elastic and scratch-resistant, and stay cool for a long time. The inside of the cushion is filled with a high-resilience sponge, which effectively disperses pressure on the hips and is not easy to deform after sitting for a long time. Unlock the tilt mode, the chair can be tilted 45°, for relaxing after work or study. The flexible adjustable armrest meets different needs, and the upturn can close the distance of the desk, and push it into the bottom of the table when not in use, saving space. The seat height has an up and down range of 10 cm (3.94 inch) and can be rotated 360°. Thickened mechanism, passed BIFMA test, SGS certified gas lift, high load-bearing split base tubes to ensure your safety. The maximum weight of the chair is 300 lbs.