WengTech 15.6" Matte Laptop Screen Protector Guard for HP/DELL/Asus/Acer/Sony/Samsung/Lenovo/Toshiba, Display 16:9, Anti-Glare/Anti-Fingerprint/Anti-Blue Light Notebook Film

Between multiple tries on precisely putting on right because the protector is smaller than the screen size on what i ordered(15.6"). After several attempts i got it to my liking, but now acquired dust on the part that should not have it. When pressed on the screen, the bubbles were formed. I pushed it out using their & it is scratching the protector. I am watching scratch marks form & stay, even after i wipe it down. After all said & done, horrible! Could it be from my many tries, maybe, but that should tell you about this product. I wanted to have a peace of mind with my touchscreen for my asus laptop. Now i have my time wasted on a inferior product that says it can 15.6". Fitting within & fitting are two different scenerios in my book. If it actually "fit" like it i thought it would, i most likely be leaving a positive review. I did right the first time, right up against the edge and lay down the protector to see a gap of screen unprotected.Take what you want, but im returning this. Even when i put the proctector on nice & even from one side to the other, it still formed lots of bubbles. Not talking about the one with dust particles. When the last try i did, it get a lot more crap on the inside. It made the screen look like crap. Its a 4K screen & should not be downgraded by this product! Look elsewhere.