Enhanced Privacy -- Computer privacy screen filter is perfect for public and high traffic areas. It uses revolutionary micro-louver technology. The filter is Anti-Glare and Scratch Resistant! Please confirm the width and height measurements for your computer screen before ordering. We advise against making a selection based solely on a computer screens diagonal size. Dark Screen For Others -- Clear view for you. The computer privacy filter makes the screen appear dark when looking at it from an angle (the angle is about 30- 60), but bright when looking directly at it. To change the privacy angle from 60 to 30 degrees - simply adjust your monitors brightness level. Privacy Filter Dimensions -- If the active area of your display has the following dimensions: Width: 18 1/4" (18.2 inches/464 mm), Height: 11 7/16" (11.4 inches/290 mm) - Aspect Ratio _, then this filter is good for you. Contact us if you have any questions about dimensions. Doubles As Screen & Eye Protector -- Protects your eyes by filtering out 96% UV and curbing blue light by 65%. Its a reversible privacy screen filter, giving you the flexibility to choose glossy or matte finish Choose the matte to reduce external glare. Easy Installation -- includes two, easy-to-attach options - Attachment strips and Slide-mount tabs. Package contains Extra installation kits (option 1 and 2). We guarantee all screen filters have 100% quality due to hand checking.