Excellent iPhone screen protector. Recommended...!
As I'm not a fan of the grainy anti-glare type protectors, the best thing about these 'crystal' ones is that they are practically invisible once fitted and don't inhibit the touch sensitivity of the screen or the ambient light sensor(as some screen protectors do) at all.
Like most screen protectors, they can be a little tricky getting them on dead straight... but the film allows you to have several goes at it.
If you want your iPhone screen protected... but not look as if it is... these are the ones to get.