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” and 7kg. 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.