Approved for commercial use; Our FL660 Series Manager’s Chair is a smart combination of comfort and function Expertly designed with pneumatic height adjustment, built-in lumbar support, locking tilt control, and adjustable tilt tension Overall Size: 27.25” W x 26.75” D x 39.25-42.25” H - Approved for commercial use Heavy duty nylon base with oversized dual wheel carpet casters Note : To ensure proper assembly, please follow all steps provided in the Installation manual (provided in pdf below)