Office Chair Ergonomic Desk Chair, Pu Leather Computer Chair With Lumbar, Khaki Product Features ?Ergonomic Office Chair Super Comfortable?The design of the backrest fits the shape of the human spine, with the 5CM up and down adjustable lumbar support, the office chair will give your back extra support. The 7CM thick padded and high resilience sponge seat also can relieve the hip pressure to offer you much comfort. PU leather cushion surface is more skin-friendly and easy to clean, and the mesh all around brings superior breathability. ?Adjustable Seat Height Rest Mode?The height adjustment range of the seat is 46cm- 53cm (18.11'' - 20.87''), which can suit the needs of more people. In the spare time of work or study, you can enter the rest rocking mode by adjusting the back leaning. (You can learn how to adjust the height and backrest clearly through our pictures or videos) ?Stable Durable Chair?The three-stage steel gas spring and heavy-duty nylon legs with maximum load of 250LB, certified by BIFMA and SGS. The thickened explosion-proof steel chassis is hard-wearing, all the details make this desk office chair use longer ?Quite Easy to Install Installation Video?This mesh office chair comes with all hard wares and necessary tools. It takes may be 15-20 minutes if following the manual instruction. For easier installation, you can also watch the installation video on product page ?5 Years Warranty?We provide 5 years of after-sales guarantee! If there are problems such as missing parts, product damage, or other unsatisfactory issues, please feel free to reach us by clicking the "Contact Sellers" button. We will reply you within 24 hours and actively solve them. Thank you for choosing ZLchair office chair. Your satisfaction is our aim 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!