I must admit that I have the first slide directly dirty; the attachment will be a little practiced and should take place under truly extreme low-dust atmosphere. However, the second film would sit like a glove and for about 6 months now protects the screen from scratches, while the film also takes itself very few scratches. I store the phone in your pocket and usually avoid contact with keys etc, but I am generally not necessarily ultra-cautious. In this respect, the film already now holds a lot longer than I thought. With the 4-pack So I'll probably come thick over the first year. From behind the mumbi silicone cover protects my smartphone. Due to the Gummisaums the protective film is also well protected against detachment. Am completely satisfied.