Also known as toughened glass， tempered glass is 4 to 5Xstronger than normal glass and is made by heating glass and thencooling it very quickly， after which it is further chemicallystrengthened by a surface finishing process.

Unlike traditional plastic screen protectors， tempered glasshelps absorb impact from drops， leaving the phone screen belowintact. Simply remove the broken glass screen protector and replacewith a new oneu2014a worthwhile investment since broken phone screensare expensive to repair.

This is a guide about glass film installation

Step 1.   Keep your hands clean before peel the No.1layer off the film.

Step 2.   Align the film with your phone screensides.

Step 3.   Carefully put the ADHESIVE PART on phone screenfrom the left side to right.

Caution:Products in high quality， but it is glass film， havethe chance to be crack. So when you receive this film， please openthe outer packaging around the edges lightly and carefully.