BLUE LIGHT & ANTI-GLARE EYE PROTECTION: Not only will your filter protect your login and other data from prying eyes, it reduces harmful blue light by 60%. And its 3H hardness rating also provides a layer of physical protection to your screen. EASY INSTALLATION: It's a snap to apply your Akamai privacy cover. We use the highest quality 3M adhesives to ensure long lasting protection. We've included full installation instructions so you'll have no problem applying the filter to your screens. JiSiTeCai - Has Your Screen Covered: Our 19" (19" diagonal) desktop filter is 1 of 26 covering 1,000 monitors with - high quality polymer film. This product covers standard and widescreen monitors and a full range of aspect ratios. LEAVE VISUAL HACKERS IN THE DARK: Don't expose personal or business data to prying eyes. These filters darken your LCD screen if seen from the sides, while allowing clear vision for you. Keep your computers secure with these industry best protectors. Privacy Filter Dimensions - Width: 14 13/16 in. (377 mm), Height: 11 7/8 in (302 mm), Diagonal: 19" (482.6 mm) - Blackout Privacy Screen Filter is designed to be compatible with HP, Dell, Samsung, Lenovo, LG, Acer, Asus, and other display brands. Please verify the width and height measurements of your computer screen before ordering. It is not recommended to choose only based on the diagonal size of the computer screen.