Help to keep the information displayed on your screen private with the help of this 3M Privacy Filter for Microsoft Surface Pro 3 and Surface Pro 4. The filter uses Microlouver technology to deliver a world-class black out effect from side views, while still offering incredible image quality from in front of the screen. To work with your touch-enabled device, it is ultra- thin and very responsive to the touch with minimal fingerprints. It adds an extra layer of protection from everyday scratches and dust and also reduces blue light from the display by 35%, offering protection to your eyes.