I've bought these films because the reviews but were very good ... Unfortunately I am totally disappointed! The installation work at all (have read the instructions several times and to me even the video on the web looked) - constantly air bubbles, which could not be removed ... and cleaning the film under water at all was not, after the film had water stains and still hanging off more dust than before ... On mobile it was not, that was new from the packaging and so therefore dust / grease free.