1,COMPATIBLE: 17 inch computer screen filter is compatible with 17 inch monitors from for HP, for Dell, for Acer, for Asus, for ViewSonic and other brands. 2,CLEAR VIEW: Laptop filter appears dark when looking at the screen from a certain angle (angle of about 30° to 60°) but bright when looking directly at it, to change the private angle from 60° to 30° degrees, simply adjust the brightness levels of the monitor. 3,EYE PROTECTION: Computer screen filter protects your eyes by filtering 96 percent of UV rays and suppressing 65 percent of blue light, reversible, giving you the flexibility to choose between glossy or matte surfaces, choose matte to minimize external dazzing. 4,ANTI SCRATCH: 17 inch laptop private screen filter is made of PET material, which is anti dazzing and anti scratch, providing you with the best viewing experience, easy to install, only takes 30 seconds to install. 5,APPLICATIONS: Screen protector is perfect for maintaining screen private in high traffic areas such as open workspaces, airports, airplanes, coffee shops, office environments, financial institutions, and other public places. 1 x Protective Film1 x Dust Free Cloth2 x Adhesive12 x Double Sided Adhesive Item Type: 27 Inch Computer Screen FilterMaterial: PETProduct Size: 17inch (Approx. 339 x 271mm or 13.3 x 10.7in) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.