I let myself be tempted by well the many positive reviews. The film consists of 2 layers, if one removes the first slide, then the actual protective film must be ideally positioned. Although I've already placed tens sheets Perfect that's me in these failed 100%. Had to buy at Media Markt new films, have then decided again for a protective film with 3 layers. The very first install worked great. Alone the film for the back with 3 slides is an impertinence.
