The film is processed accurately and of very good quality. I do not, however, been unable to mount them bubble-free. (I had ordered an extra two, one for practice). Even in the bathroom buzz diverse speck of dust in the air. And every little speck of dust under the film develops into a bubble. Since you can still so much to wipe the screen, you have simply no chance. The more one tries to get clean the display, the more it will become statically charged and attract each speck of dust from the surroundings like a magnet. If you do not clean room (as zBbei chip production) at its disposal, one should stay away from such films, unless you find the bubbles on the screen chic. Conclusion: for me a waste of money, I use my cell phone and the fine scratches on the display disturb me less than the bubbles. And if it then but too much time is, then the mobile phone is old and high time for a new one. Nevertheless, three stars for the quality of the film, as long as they are left in the packaging.