BEFORE PURCHASE SHOULD KNOW Double check your screen's Width and Height excluding frame before ordering. It's not recommended to make your selection based solely on your screen's diagonal size. IMPORTANT INFORMATION: 1. Please carefully check the computer "Aspect Ratio" size before ordering so as not to buy the wrong product. 2. It does not block visibility directly behind you, regardless of the distance. 3. Please know that when you use this privacy filter, the screen will a little darker than before. 4. Customized product dimensions may have 1-3mm errors, but will not affect normal use. 5. Ensure your working space is bright and well lit. Privacy screens do not work in dimly lit areas. 6. To change the privacy levels - simply adjust your monitor's brightness level accordingly. 7. Will not fit for curved screen. Package Content: 2x Privacy Screen Filter 2x Sets of Installation Acessories 1x Instruction manual