is the film, which is very important. I had but two although small bubbles they could be wiped out without any problems. The film has the height approximately 2 mm in width and about 1 mm less than the display. This is something much more in height (this one is at a slightly oblique mounting but still on the safe side). Because of this dimensional deviation I subtract a star. The film reflects just as strong as the display and is otherwise invisible. All in all a good choice.