You put the protective glass on the cell phone screen and then press to it and it sucks itself firmly on its own during all the bubbles disappear :)
(One must of course make sure that it accurately positioned in front of it because the decrease again a little more difficult).
If the protective glass on the screen is, it feels really great, as if no foil it!
Am absolutely thrilled and will in future use only those display glasses instead of films.
Did not want to check out how unbreakable it is but it is supposed to be very steadfast :)
