I've used Otterbox glass products for about three years. The first one I got worked perfectly for two years on my old phone. I then changed phones and decided to get another Otterbox glass for my new iPhone. The otterbox glass shattered within a few days, from the phone being placed on a table. Not dropped. Placed. I put it down to bad luck, and bought another. A week later, the same thing happened. I decided not to replace it, and have left the cracked one on my phone. It has since then shattered another time. I am at a loss to understand how this keeps happening from such a reputable product.