The glass film is a protective layer that covers the mobile screen from all sides The display of the mobile phone will never get damaged. You can improve the life span of the mobile phone screen by many years with the best screen protectors. The screens can be installed by an expert. This guarantees that it will not come out easily. You can use the same mobile phone screen for years. One single size screen will also fit most mobile phone devices. You just have to select the right size screen for your mobile phone.