Office Chair/Massage Office Chair 84556910Features: 9. 5" 23. 2" adjustable seat height for optimal desk alignment Class three gas lift provides smooth, secure height adjustment Tilt function allows rocking motion for relaxation Thick foam padding, high back and padded armrests for comfort Luxurious and sleek PU leather is easy to maintain Swivel seat for effortless 360 movement PU wheels glide silently on various floor types Assembly required Specification: Color: Black, Silver Materials: PU