1、16: 10 ASPECT RATIO: Computer private screen has 16: 10 aspect ratio, applicable to various brands of computer displays, please confirm the width and height sizes of your computer screen before ordering. It is not recommended to choose based on the diagonal size of the computer screen only. 2、PEEK PROOF GUARD: This laptop private screen utilizes micro blinds optical technology that only allows users within 30 degrees on either side of the screen to clearly see what's on the screen, while others can only see the dark screen. 3、BLUE LIGHT AND GLARING GUARD: This computer private screen shield not only protects your login information and other data from prying eyes, but also reduces 70% of harmful blue light. Glossy side is used for anti glaring and anti reflective clarity, both of which can meet any of your requirements. 4、9H HARDNESS RATING: The computer screen protector has a 9H hardness rating, providing a layer of physical guard for your screen. Frosted anti reflective, rejects fingerprints. Oleophobic layer effectively prevents oil stains and rejects fingerprint staining. 5、EASY INSTALLATION: We use the highest quality adhesives to ensure long lasting guard. You can easily install the laptop screen private filter to your screen, simple and convenient, saving time and effort.