After delivery, I immediately applied one of the protective films and mounted on the display. But I was not very happy with the result because I could not afford right the first time, the film, somehow she was still not right after a few tries! After I want to correct the first film by the had made useless, I tried it again with RETRY a second film. Although it was a hassle, but the second attempt succeeded, and my screen has the desired protection. My conclusion: The film is quite useful and I recommend you.