The only thing I can say about this is, my screen has yet to break and I have tried breaking it over and over again, but nothing (haven't done anything DRASTIC that is sure to break it, but I have tried throwing it on the ground a few times, and lo and behold, nothing... The one BAD thing I can say about it is, it DOES NOT protect against scratches... I have 2 definite gouges on my screen, hence the reason i was trying to break it to get a replacement... but still nothing... So it works well for protection, but not scratches...