Essentials Customizable Ergonomic High-Back Mesh Task Chair with Arms and Lumbar Support - Ergonomic Computer/Office Chair COOLING MESH BACK WORK CHAIR: Added comfort with breathable fabric that you can relax into COMFORTABLE HOME OFFICE CHAIR: The adjustable chair back adapts to fit various body sizes and helps reduce pressure on the lower spine ERGONOMIC POSTURE SUPPORT: Ergonomically formed seat fits nearly any body and adjustable-height arms allow for added customization ADUSTABLE ARM OFFICE CHAIR: Height-adjustable arms provide all-day support for upper body and shoulders HEAVY DUTY AND DURABLE OFFICE FURNITURE: Durable sandwich mesh, adjustable arms, and 250 pound weight capacity. Seat height: 15.75 - 19.50 inches, seat size: 20 W x 18.25 D inches COMPUTER CHAIR WITH WARRANTY: Essentials by OFM limited warranty