As good as the screen protector may be in terms of quality, it does not fit properly on the phone. I tried it with two different cases that I have (one of them being the original OnePlus case), and it does not fit well, resulting in the case "lifting" the screen protector in some way and leaving gaps for air and dust to enter from the corners. Therefore, the fact that it does not adhere well to the corners makes it more vulnerable to breaking.