The set contains 3 films. The cleaning of the disc and the application to the device for which one is normally used a plastic card so to organize itself. For pressing, I recommend the halving of the past any card out of your wallet. When the size of the S5 you can but also with a whole attempts. The cleaning of the disc should be done with an alcoholic cleaning cloth, if possible, every little fat residue from the finger leads to poorer adhesion of the film.
A good tip, but can not always be followed because of the mostly poor lighting conditions, it is to be made (or shortly after a hot shower) the application in a bathroom with a shower running, because it is the most dust grains are pretty well tied.
I have used a film at the first attempt and applied a day later again a new one. But this is due to my clumsiness and our cats.
The low delivery (no card, no cleaning cloth) leads to a star deduction. Otherwise, the result is very good and practically invisible. Whether one is really needed, however, with a Gorilla glass as the S5 While discussion capable Looking at times Destruction attempts on Youtube, you know that as a film then it's just snake oil.