Power Support Anti-Glare Film Set for iPhone (Original)
I've used this for 3 iphones. Never mis-installed and had to throw away the film.  It's really easy to install.  Your finger glides through the screen. MUCH better than no film at all (the anti-glare one).   The clear one feels like the regular iphone without a film.  The anti-glare does what it says. So your immages become like pictures printed in non-glossy paper.  Not so shiny, but also not reflective of external light sources.    I LOVE IT.  IT'S WORTH THE VERY EXPENSIVE PRICE.