1、COMPATIBLE: Computer screen filter is compatible with 19.5 inch monitors from for HP, for Dell, for Acer, for Asus, for ViewSonic and other brands. 2、SCREEN ANGLE LIMITATION: Laptop private screen filter makes the screen appear dark when viewed from a certain angle (about 30° to 60°) but bright when viewed directly, simply adjust the brightness levels of the monitor to change the private angle. 3、REDUCE DAZZING: The 16:9 widescreen screen protector is a reversible private screen filter that gives you the flexibility to choose between glossy or matte surfaces, with matte surfaces selected to reduce external dazzing. 4、EYE PROTECTION: Protects your eyes by filtering 96% of UV rays and suppressing 65% of blue light, can be installed in about 30 seconds, PET material, scratch resistant. 5、PUBLIC PLACES: Computer screen filter is perfect for keeping screens PRIVATE in high traffic areas such as open workspaces, airports, airplanes, coffee shops, office environments, financial institutions and other public places 1 x 19.5 Inch Laptop Screen Filter1 x Dust Free Cloth2 x Adhesive12 x Double Sided Adhesive Item Type: 19.5 Inch Laptop Screen FilterMaterial: PETSize: 19.5 inch (Approx. 433 x 249mm / 17.0 x 9.8in)