HD Anti-Scratch Coating Process: The privacy screen filter fits for 23.6”23.8”24”widescreen monitors with a 16:9 aspect ratio. Actual Filter Size: Width: 21.5 inches , Height: 12.6 inches. It is designed with a combination of high-definition anti-blue light privacy film and acrylic anti-scratch technology, which greatly improves the clear view for you and protection of the product. Please verify your computer screen's width and height size, not recommended to based only on the diagonal size | Enhanced Privacy: GUDTEKE computer privacy screen perfectly combines blue light screen and privacy film to protect your eyes while preventing privacy. The privacy filter support the angle 30-60° range to view the screen, but please know that when you use this privacy filter, the screen will a little darker than before, making it excellent for use in high traffic areas | Eye Protector: Computer screen cover can filtering out 96% UV and curbing blue light by 65%, advanced Blue Light Blocking Technology helps protect your eyes, sleep, and skin from the negative effects of blue light overexposure reducing eye strain, preventing myopia & dryness, hyperemia and so on, effectively improving your work and kid's learning | Simple Installation: Computer screen blue light blocker easy to use, Hanging design for easy installation and removal, computer screen privacy shield fitting on working, learning, playing games, watching TV and so on, GUDTEKE Privacy Screen Filter is engineered to be compatible with HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic, and other monitor brands | Professional Service: GUDTEKE is the leading computer screen privacy film producer, without your worrying about the prying eyes, scratching the screen, cleaning it again and again, purchase confidently. Welcome to contact us if any problem troubles you, Answer and solution you got in first time