Black Office Chair, Rolling Swivel Chair With Lumbar Support, Height-Adjustable Product Details ?Ergonomic office chair with Backrest Keep You Relax?This computer chair has an ergonomic backrest, which can give you enough support for your back, whether you are working or taking a nap, this ergonomic office chair can bring you a relaxing experience. ?Desk Chair with Flip-up Arms Save Your Space?The Adjustable armrests can move up and down and the comfortable armrests with soft padded can relieve the discomfort of the elbow area. After use, you can retract the arms and put the ergonomic office chair under the desk to save space. ?Comfortable and Brethable office Chair?The office chair using a high-density sponge cushion will fit into your sitting position for a long time. The highly breathable mesh back with lumbar support makes your back feel comfortable. ?Multi-Function Adjustable Home Office Chair?The metal base of this home office chair is very sturdy and can hold up to 250lbs. Desk Chairs with Wheels also features 360-degree rotation.it runs smoothly and won't damage floors or carpets, making it suitable for most office floors. The desk chair has a 120 tilt tension, pneumatic height adjustable from 17.9 to 21.6inch, and matches different stature. ?Easy Installation?This mesh office chair is very easy to install, you can assemble it within 15 minutes. we have provided detailed instructions and installation videos. If any problem, you can feel free to contact us. Just enjoy our premium computer chair Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.