ERGONOMIC DESIGN: The ergonomic high backrest of this office chair is covered in mesh fabric for breathability while the high-density sponge padded seat is soft and comfortable for working at homeLUMBAR SUPPORT: The mesh curved backrest of this office chair helps keep your back supported all day and ease the pressure on the spineADJUSTABLE HEIGHT: You can adjust the office chair seat height and the armrest can be lifted for less placement space to match your desk and your sitting habit. A high-end gas lift makes it smooth and securedMOBILITY: With 360swivel wheels and seat, this home office chair allows all kinds of mobility with no problem and offer convenience. You can rock back and forth to stretch out your backDIMENSION: Overall Dimension: 62W x 62.5D x 96.5-106H cm, Seat Dimension: 49W x 51D x 43.5-52.5H cm. Max Load: 136kg. Assembly required