Cento AquaSAFE is a full glue tempered glass specially designed to filter 90% of the blue light from the screen, thus protecting your vision. The sensitivity of the screen and the contrast of the colors will not be affected, having a high degree of transparency, after its application on the screen it is practically invisible. Made of tempered glass, with adhesive on the entire surface, it is easy to apply, protecting the phone's display against impact and scratches. The package includes a complete cleaning and mounting kit. Method of application: 1) carefully clean the phone screen; 2) peel off the protection from the adhesive side and position the foil on the screen, with utmost care, without applying force; 3) return to the surface of the glass with a plastic card for a complete bonwith a plastic card for a complete bonding.