A stylish chrome base with TUV certified casters, Intertek approved pull-up leather, SGS approved Gas-Lift system and tilt function, delivering absolute five star luxury. An elite in quality and design, your solution to true comfort.Its ergonomic S-curve design with 5 different massage modes powered by simple USB connection offers perfect support to make you relaxed, allowing you to work or play at your peak for long periods of time in optimal comfort. It features a sturdy chrome base with up to 150 degree back recline adjustment and 360 degree swivel.