The armored foil in the pack of 3 completely covers the display, which does not interfere with the attachment of an additional case . The operability is maintained by the protective glass as well as the color fastness (99 ) of the display - almost invisible protection! The Screen Protector is made of specially processed glass and protects your display . The display of your smartphone is optimally protected by the glass foil against scratches and damage caused by shocks and impacts - so you extend the service life! HOW-IT-WORKS: The 2-layer FILM PROTECTION SYSTEM makes it much easier to attach the screen film! Bubbles can be easily removed towards the edges . Cadorabo 3 Pack Tempered Glass Full Screen Tempered Glass Fullcover Display Protective Glass The tempered glass protects the display of your phone . It is made of specially processed glass to optimally protect the display from scratches and drops . The tempered glass protective film is 0 .3mm thin and transparent, with silicone components on the non-adhesive side for better gliding of fingers on the display . The colour fastness of the display remains guaranteed . The scratch resistance of the crystal clear protective glass extends the life of the display even in the event of falls . The glass is extremely thin and does not hinder the usability of the phone, nor does the image quality change . The product offered is an accessory product from Cadorabo . The reference to the trademarks listed above is only an indication of the intended product offered as an accessory .