Grey Office Chair Ergonomic Computer Desk Chair With Mesh Mid-Back And Product Details ?Ergonomic Design?Ergonomic is one of the main design concepts of each single office chair. With the special curved lumbar support and armrest, you could relieve fatigue during working or studying on this computer chair. ?Adjustable Height Office Chair?Move your seat up and down with ease using the simple pneumatic mechanism of this beautiful desk chair. This home office chair is number one in providing you with comfort at all kinds of workplaces like home or company's office, conference rooms, hotels, lobbies, and receptions. ?Maximum Comfort?The Office Chairs have a Soft High-density sponge Seat, which is covered with durable breathable mesh fabric and has good elasticity and is difficult to deform to keep the comfort for long hours. ?High-quality Material?Height-adjustable class-3 gas lift, Heavy-duty base, and smooth-rolling casters for great stability and mobility to help promote a comfortable seated position, keeping you comfy after long hours of game or work at home. Note : To ensure proper assembly, please follow all steps provided in the Installation manual (provided in pdf below) ?Easy to Set up Office Chair? Our office chair comes with all hardware necessary tools. And we offer the installation instructions and video to help you. 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.