Swivel: Comes on 60mm castor wheels with 360-degree rotation. Office chair: Get a faux leather office and gaming chair. Massage function: With a comforting and relaxing vibrating function to help relax your body. Ergonomic design: Made from faux leather with thick foam for comfort. Two colours: Choose from black or grey. Adjustable: Featuring a 130-degree reclining backrest with gas lift height adjustment and pull out footrest.