The formula racing chair has comfort, aesthetics, and quality combined. With high-density foam filling and high-grade faux leather upholstery, these chairs are made to last longer than ordinary chairs. The ergonomic design and solid structure are made for extended use. product details : - rocking/tilting: yes, the tilted angle of the chair varies from 90 to 130 degrees. You can lock the backrest at different angles for activities like studying, sleeping, watching movies, etc. - rotation: this chair has 360 swivels in any direction and easy for you to carry out your conversation. - extra comfort: it has lumbar support and headrest cushions to give maximum comfort for long hours of seating, lumbar support pillow supports your back, headrest pillow will keep your head relax while you are sitting. - adjustable height: pneumatic gas lift can adjust the height up to 3 inches, you can adjust the seat height as per your choice - material: high-density foam covered with premium quality of pu leather, sturdy and durable high quality of nylon base and castors. - rippled padded layers and color contrast augments the aesthetics dimension (inches): width: 27" length: 19" height: 48" - 51" seat width: 20", seat depth: 15",back width: 20.5", back height: 29.5" weight capacity: 220 lbs assemble: some easy assembly required. assembly instructions included.