Marsail Office Chair Ergonomic Desk Chair, 360Swivel Mesh Back Wide Computer We strives to bring ultimate comfort and efficiency with its ergonomic concept, both at home and in the office. If you have any questions or concerns about our products or services, please feel free to reach out to us through our after-sales email. We will make every effort to address your concerns and ensure your satisfaction. Your happiness is our top priority. Product Features ?5-YEAR CUSTOMER ASSURANCE: We provide 5 years of after-sales guarantee! If there are problems such as missing parts, product damage, or other unsatisfactory issues, please contact us via the email address provided in the instruction manual- our dedicated team responds within 24 hours during workdays. Thank you for choosing Marsail office chair. We will be responsible for your choice ?UNIQUE COMFORTABLE FABRIC: This office chair features a headrest, seat, and armrests made of high-quality, skin-friendly PU leather that is soft and easy to clean. The backrest is crafted from breathable mesh with high elasticity and strong tensile strength, helping to keep your back cool and comfortable for extended periods. Our PU leather and mesh combination is an innovative design that prioritizes your maximum comfort ?HIGH-DENSITY FOAM SEAT: Our computer chair cushion boasts a stylish, saddle-shaped design that is both fashionable and attractive. Equipped with high-resilience foam, it distributes pressure evenly across the seat, providing superior comfort and support for extended periods of time. The seat has been durability tested up to 100,000 times, ensuring that you can use it with confidence and without worry ?REAL-TIME ADAPTIVE BACKREST: The ergonomic office chair is equipped with an adaptive lumbar support that is adjustable by 2? to properly match body height and shape. The S-shaped backrest is designed to better fit the spine for more effective lumbar support ?CUSTOMIZED COMFORT: With a wide range of customizable features, suitable for people of different heights, including an adjustable 2D headrest, backrest with a 90 to 120 tilt rocking angle, and 90 flip-up armrests, you can adjust the desk chair to find the optimal position for your neck, cervical spine, shoulders, and arms, providing maximum relaxation. You can also adjust the seat height to meet your work and daily needs(Suitable for height range: 5ft 1" to 6ft) ?BUILT TO LAST: Our home office desk chairs features a Class 3 SGS gas lift that has been tested for durability up to 120,000 cycles, a strong five-leg base, 360 smooth swivel, and quiet caster wheels that roll easily on wood floors, carpet, and tile. Enjoy improved posture and true comfort with a ergonomic desk chair that is built to last with a weight capacity of 300 lbs ?EASY TO ASSEMBLE: We offer installation instructions and videos to help you easily and quickly assemble the office chair yourself. It usually takes about 10-20 minutes to assemble. If you have any questions, please feel free to contact us ?INSTALLATION NOTE: When connecting the armrests to the backrest, do not tighten all screws before aligning them with the corresponding holes. Please align each screw with its respective hole and then tighten them one by one to ensure a proper installation ?INSTALLATION NOTE: when installing the headrest, do not tighten all screws on both sides before aligning them with the corresponding holes. Make sure to align each screw with its respective hole first, and then tighten them one by one to ensure a successful installation Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!