Minus points are the attachment of the film, as well as the mark. It is specially a grid on the slide attached, so you can just applying. However, the edges are completely wrong cut (what one sees on the grid).
In addition, I have kept to the knitting instructions. Nevertheless, the first grid foil has dissolved and then the actual protective sheet from the adhesive side. Thus, the surface of the enclosed cardboard wiper (which is used for bubble outdoors applying the film) is completely scratched.