A stylish classic for the modern office environment the Diablo's timeless design, features continuous dynamic movement and superior comfort | Black PU Upholstery | Black PU with black frame | Dynamic seat movement | Adjustable seat height | 60mm soft PU castors | Full 6 year guarantee (excl upholstery) | Tested to ANSI/BIFMA x5.1-2011 General-Purpose Office Chairs | Due to freight costs, some orders may incur a delivery charge and this will vary depending on the order, particularly in regional areas. Delivery costs can be confirmed at the time of order. Some items require assembly, if you need help this can be advised at the time of order. A service fee for assembly/installation may also apply. Delivery lead times may apply to some items, this can be confirmed at the time of order