[Ergonomic Chairs]: Built-in solid lumbar support and ventilated curved backrest greatly fit your spine. Proper posture effectively relieves your back pain and leads to better long-term comfort. An ergonomic desk chair keeps you more productive at work. [Multi-function]: Pneumatic adjustable height, 90° flip up armrests, 30° rocking mechanism, and 360° swivel. The reclining system allows you to tilt the backrest back to achieve a comfortable position. With the flip-up arms, the office chair can easily slide under a desk to save space when not in use. [Breathable & Comfortable]: Constructed with breathable mesh back which keeps you cool and high-resilience foam cushion with no deformation. Plus, adjustable padded armrests offer extra comfort and support for your arms. This comfortable computer chair is suitable for home and office. [Sturdy & Durable]: Our desk chair features SGS certified heavy-duty gas lift cylinder and durable 5-point base. The weight capacity of the mesh chair is up to 300lbs. Quiet Nylon caster wheels can smoothly rotate 360° without any damage. [Easy to Assemble]: Office chair comes with all the tools you need, just follow the detailed instructions or the video, the mesh chair assembly would be done easily in 15 minutes on your own. Please get in touch with us if there is any issue or question.