I was more than a little surprised when an assistant at the Apple store directed me to this way less expensive (<$9) screen protector at Amazon over their $50 alternative. This isn't one of those cheap plastic covers, but real glass. You just clean and dry your iPhone screen, peel off the cover on the back of the glass, align the glass on your screen, and lay it in place. A little tap of the finger in the middle of the glass and it appears to melt into your phone. I had a couple of little spots where it initially didn't completely bond, but by the next day they were gone. This link includes some videos to explain it better than I can. Make sure you buy the version specific to your model phone.