About this item Effective Anti-Blue LightThis blue light screen protector features a layered anti-blue light design and multi-layer blue light filtering that effectively blocks harmful blue light, even during extended computer use. Better eye protection means reduced eye strain and fewer headaches. Perfect CompatibilityThis laptop screen protector is specially designed to fit all brands of 14-inch laptops with a 16:10 aspect ratio (Not Fit for a 16:9 resolution laptop. If you're not sure, contact us to confirm it for you!). Perfect for TouchscreensOur computer screen blue light blocker works great on touchscreen laptops without any problems. It's designed to adhere to the screen only, and not the screen frame, leaving no adhesive residue. This blue light blocking screen protector is ultra-thin, once installed, it's almost imperceptible, providing a natural viewing experience without any added bulk. It also won't interfere with the touchscreen functionality, you'll enjoy a flawless touc