Huanuo Ergonomic Office Chair, High Back Desk Chair With Adjustable Lumbar Product Features Ergonomic Comfort: This ergonomic chair features an adjustable lumbar with thick 1.6? padding for comfortable support that lasts all day. The mesh office chair is designed to fit the natural curve of your spine to help avoid back pain and stiffness typically caused by prolonged sitting. Multiple Adjustments: Enjoy improved posture and lasting comfort with our lumbar support office chair. The computer chair provides 14.96? to 19.68? seat height adjustment, 90 to 120 adjustable recline with variable rocking tension, and 2? headrest height adjustment for custom head and neck support. Thicker Seat Breathable Mesh: The ergonomic mesh office chair seat is cushioned with 4? high-density memory foam to help reduce pressure on your hips and tailbone. The breathable mesh backrest features high tensile strength and allows better airflow to keep you cool and dry for long work sessions. Flip-Up Armrests: Whether you prefer more elbow room while working or need to tuck the work chair under a desk, the padded computer chair armrests can be flipped up 90 to save space. Silent PU caster wheels provide smooth movement on all types of flooring so you can stay focused without distraction. Designed to Last: The ergonomic office chair is built to last with an SGS-certified Class 3 gas lift and sturdy 12? steel base that can support up to 300 lbs. Best of all, the home office desk chair has passed BIFMA durability testing to ensure long-lasting performance and reliability. Hassle-Free Setup: Assembling the desk chair with wheels is a breeze using the detailed instructions and labeled hardware. Please contact our U.S.-based product support team if you have any questions about office chair assembly or product selection. 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!