But then I was very pleasantly surprised to product quality: each of the 10 protective film is individually wrapped with 1 soft cloth to wipe the screen before installation. The installation is very simple 2-stage: 2 very light films protect both sides of the main movie and facilitates installation on the laptop.
Result: after installation, no air bubbles! And the film is of good quality and can be cleaned easily with the soft cloth provided. Very happy with my purchase, at a very competitive price!