The application of the film, formed without air bubbles was almost impossible for me. However, I am also not followed the instructions to bind by increasing the humidity, the dust particles in the ambient air. I had with the application of a film on my iPhone a few months ago no such problems, so it seemed to me, this effort is not necessary; was probably a mistake. Have frustrated thrown in the trash, the film ultimately. Also, I find overpriced product, so I only 2 points.