The thickness of 0.4mm and more on its mobile ice it quite reassuring (especially after breaking a Sony Xperia Z "unbreakable" in the back pocket just running ... and scratched one month before with key .. .) Only problem, the lack of explanation of the leaflet, but simply clean with alcohol (supplied) and wipe with a cloth (included) and then not put that gently shaking and ... let a few seconds it this glue alone (we see membership be in the form of a black shadow are alarmingly ... but that's normal;) ...) then from the center to the regions that would not have adhered and After 10mins you can rest, take ca!
Tested with a sharp chisel and a cutter, and no proof, it is impressive the first time, reassuring for the future ^^