Product Engineering and Technical Design ViewLite Plus Dynamic Monitor Arm by Tijs Horn The ViewLite Plus dynamic monitor arm is a unique product. Instead of using a conventional height adjustment mechanism based on either a coil spring or gas strut, it uses Single Direction Bearings (SDB). Our SDB mechanism completely balances the chosen position of the monitor. It provides enough friction to prevent the screen from sagging, and almost no friction at all when the user is moving the monitor upwards. This method completely eliminates the necessity for springs or gas struts.