The films are good, no question, but difficult aufzulegen.So correctly I felt like many, first slide botched, second film is well auf.Luftblasen I have not seen as a problem because the films are stable, can be air pockets can herausstreichen.Ich the product is quite empfehlen.Wenn at the end of the film highlighted a small knife, prevents you touching his fingers, and the film may, for the purpose of positioning, pull off any number of times.