JUMMICO Ergonomic Office Chair, High Back Desk Chair with Adjustable Headrest and Flip-Up Arms, Mesh Computer Chair with Lumbar Support, Gaming Chair, Swivel Task Chair for Home Office, Black - YZ0240

• Ergonomic Office Chair: The backrest and lumbar support of this office chair form a unique S-shaped structure. This design conforms to the curve of your hips and back to provide comfortable support. You can maintain a healthy spinal posture while sitting in this chair and work for long hours without back fatigue and pain. Adjustable Headrest and Arms: The headrest and armrest of this table chair can be adjusted according to your needs. You can freely adjust the height and angle of the headrest to better protect your cervical spine and get a more comfortable experience. Meanwhile, the flip-up armrests can also be selected to be retracted upward or downward according to the scenario. Multi-functional: This computer chair has a 4-inch height adjustment range, 360°swivel, and 40-degree range rocking function. Silent PU casters protect the floor, a breathable mesh backrest keeps air circulating, and the padded soft seat provides extra comfort. These functions make this ergonomic chair adaptable to a variety of scenarios, such as working, studying, relaxing, or gaming. Sturdy and Durable: The sturdy five-point base and tight structural design of this high-back office chair provide excellent stability. The chair's frame is made of sturdy nylon material and the base is made of high-strength metal. High-quality gas springs and a thickened, explosion-proof base allow this chair to easily hold up to 350 pounds and provide years of long-term use. Easily Assemble and Excellent Service: Following the installation tutorial provided, you can easily complete the assembly of this office chair. We have a professional customer service team, so please feel free to contact us if you have any questions. Contact Us: Login to your Amazon account > Choose "Your Orders" > Find the Order ID > Click "Contact Seller".