I was careful to settle down on a perfectly cleaned table without dust. The movie comes in a box with a leaflet, cleaning cloth, micro fiber cleaning cloth, a special tape to catch the dust (I'm not used it), 2 small sticker (one white, one black) the home button if you feel like it ... I also made sure to clean the front screen bezel for my product to degrease well. The protection is easy to install, and do not rush to the proper position. Once deposited on the screen, touch the tip of the center must .... and presto, the screen adheres alone! No problem ... My son also enjoyed skiing. The question is whether in case of impact, it protects ... but in any case, once applied, the film is invisible, and you could put the shell easily.