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 Item Type: 19.5 Inch Laptop Screen Filter Material: PET Size: 19.5 inch (Approx. 433 x 249mm / 17.0 x 9.8in) 1 x 19.5 Inch Laptop Screen Filter 1 x Dust Free Cloth 2 x Adhesive 12 x Double Sided Adhesive