Compatibility: Our anti-spy filter was designed for 15 inch Microsoft Surface Laptop 5 (2022), Surface Laptop 4 (2021), Surface Laptop 3 (2019), Surface Laptop 2 (2018) and Surface Laptop 1 (2017). You can use it anywhere you need to protect the privacy of your screen, including offices, cafes, planes and trains. If you have any problems with the product, please contact us now and we will provide you with the best service. Brilliant glare protection: the anti-glare film layer of our privacy filters reduces reflection caused by scattering and diffuse light reflection through fine particles on the surface layer to create a clear and transparent visual space and reduce eye damage caused by glare. Scratch resistant layer to prevent scratches from daily use. You can extend the durability and security of your Microsoft Surface with one simple solution. New installation design: with the innovative magnetic installation method, you only need to align the magnetic strip at the top of the Surface Laptop 4 privacy filter with the top of the surface screen, and the installation can be completed in one second, without glue and worry-free. Protect your eyes: Surface privacy filter uses high-quality materials imported from Japan and unique technology to reduce UV light by up to 92% and blue light by 95%. This essential tool not only protects your screen data, but also prevents eye strain. Helps you reduce eye pressure and relax the eye muscles. Privacy film is a smart investment that protects your data and yourself. Improved privacy filter: with unique ultra-fine micro louvers technology, our Surface laptop 15 inch privacy limit the viewing angle to about 28 degrees on each side. Micro louvers are angled to block part of the pixels on your screen, the allowed pixels can only be seen frontally. This prevents people nearby from seeing your monitor. So you can ensure that the privacy of your computer data is not disturbed.