The fellowes lotus dual monitor arm raises monitors to an optimal viewing height to prevent neck strain and free up valuable workspace - for use only with the fellowes lotus sit-stand workstation. It is easy to mount, allowing for quick set-up and each arm holds a monitor up to 27 inches and 5.9Kg. The dual monitor arm adjusts in height up to 40cm above the top surface of the lotus sit-stand workstation and the monitors will stay in place when you lift or lower the sit-stand workstation.