I purchased this product thinking that I would have to get it professionally applied to my new lap top/tablet. Well, I did not. This was the easiest install. The instructions were clear and concise.even a novice could apply it. No bubbles, no dust particles and no adhesives. When I made a mistake, I simple pulled the protector away and it still made a proper seal. Most of all, I am grateful the 3 additional screen protectors came in the package.