Features: 1.COMPATIBLE: 17.3 inch computer screen filter is compatible with 17.3 inch monitors from for HP, for Dell, for Acer, for Asus, for Levono, for ViewSonic and other brands. 2.VIEWING ANGLE LIMITATION: Laptop private screen filter provides you with a clear view of the screen, which appears dark when viewed from an angle (angle of about 30 to 60), but bright when viewed directly. To change from 60 to 30, simply adjust the brightness levels of your monitor. 3.BLUE LIGHT SUPPRESSION: Protects your eyes by filtering 96% of UV rays and suppressing 65% of blue light. This is a reversible private screen filter that gives you the flexibility of choosing either a glossy or matte surfaces, with the matte surfaces selected to minimize external glaring. 4.EASY INSTALLATION: Computer screen filter offers two mounting options, either using clear adhesive strips that securely fasten to any monitor, or snap in mounting, which you can install or remove as you see fit. 5.APPLICATIONS: 16:9 widescreen screen protector is anti glaring and scratch resistant, perfect for use in open workspaces, airports, airplanes, coffee shops, offices and other public places. specification:Item Type: 17.3 Inch Laptop Screen Filter Material: PET Product Size: 17.3inch (Approx. 383 x 215mm / 15.1 x 8.5in) PackageList: 1 x Protective Film 1 x Dust Free Cloth 2 x Adhesive 12 x Double Sided Adhesive NotePlease confirm the measurement of the width and height of your computer screen before ordering.