Ergotron 45-361-026 Interactive Arm LD - Wall Mount 20 inches (51 cm) height range allows users to move between sitting and standing positions while they interact with the Display Extends LCD up to 17 inches (43 cm); push your Display out of the way when not in use The revolutionary design allows interaction with your TV by moving the screen to where you want it when watching movies, gaming, exercising and more Provides smooth, continuous vertical and horizontal movement of the TV/Display in all directions Patented CF motion technology provides premium ease-of-use adjustment