【Adjustable】The backrest adjustment mechanism allows the backrest to be tilted up to 135°. The angle can be adjusted and locked according to your needs. 【Ergonomic Design】The armrests conform to the curve of the arms, and along with the soft and comfortable footrest, the overall design reduces pressure on the back and legs for added comfort. 【Massage Function Lumbar Support】 This chair is equipped with massage lumbar support with USB connector. The massage is moderate and can help you effectively relieve hip fatigue after work. 【High-Quality Material】Soft and durable faux leather is easy to clean. The cushion is padded with high-density foam that does not collapse easily. 【360° Rotation】The chair swivels 360 degrees and has smooth swivel wheels for use on tile, concrete and wood floors without scratching the floor. Inbox Zero Upholstery Colour: Black/Blue, Base Finish: Black