Available in leather, black or blue fabric ? Fully Re-Upholstered seat, back and outer ? Adjustable arms ? 3 lever mechanism ? Ratchet back height adjustment ? Gas lift tested up to 150kg ? Usage: Task 8hr ?The height of the seat can be adjusted as required ?The height of the back can be adjusted as required ?Adjust the seat depth to fit your body - improve circulation by alleviating pressure on the legs ?Position the Seat and back angle independently for optimum support and posture ?A Permanent Contact Back Function offers optimal comfort by locking the backrest at any angle or with a free float option ?A lever adjusts the seat angle to encouarge the recommended seat position ?The tension of the seat tilt mechanism can be adjusted to support individual requirements ?Arms are INCLUDED with this chair