The chiro high back office chair features an extra large seat and back for comfort and to help maintain good posturewith a stylish chrome swivel base and upholstered in black or blue fabric this chair will suit any office and home office environment large contoured foam seat amp back twist adjustable lumber support back rake adjustment seat height adjustment chair tilt seat slide height adjustable arms ratchet back height adjustment polished chrome basedimensions seat width ndash 510mm s