·Anti Spy:13.3 Inch Laptop Privacy Screen protector use high quality PET privacy film. The film is tint?But not very dark. So it offers excellent privacy.It also protects your eyes and at the same time it does not dim your screen much?if you stand in the front of screen it is very clear, when you move a bit to the side of screen(Limits viewing angle to +/- 30 degrees) ,it became blurry do cannot see it . Even at a close angle and full monitor brightness, the screen does a good job of obscuring text and images. At a higher angle, like 60 degrees, the privacy screen protector 13.3 inch looks almost completely black ·Worry-Free shopping:5000 times of quality test and Anti Spy angle test to Produce a piece of 13.3 inch privacy screen for laptop,to provide high quality products for our customers.So don’t worry about any problems after your purchase the 13.3 inch privacy screen for laptop 16:10 Aspect Ratio ,We provide 180-day unconditional return and exchange service.Our email service is online all day ,if you have any questions,please feel free to contact us ,we will solve the problem within 24 hours..[Note: It does not block visibility directly behind you, regardless of the distance. And it works best in bright well-lit space] · Professional Design:PYS Privacy Filters are designed to be compatible with Lenovo , Dell,HP, Asus, Samsung,LG and other Laptop brands. Please verify your screens width and Width before ordering. If the active area of your display has the following dimensions: Length 11 2/7 inch (286.4mm) , Width : 7 inch (179mm) - Aspect Ratio 16:10, then this filter is good for you. Contact us if you have any questions about dimensions. Note:Please make sure to check your screen's Length and Width measurement and do not decide your order only based on your screen's diagonal size. ·reduces glare and brightness:Our computer screen privacy is reversible(the shiny side and matte side?, giving you the flexibility to choose matte.