Height adjustable Various tilt locking positions Separate lumbar support Back Recline Chair Tilt The height-adjustable, padded armrests can be set to your desired width for a truly customisable experience. The adjustable tilt locking positions and headrest let you recline in comfort, while the separate lumbar support ensures optimal back alignment. Plus, the quality gas lift mechanism delivers smooth height adjustment and 360-degree swivel for easy maneuverability. Some assembly is required.