Hello, I was riding my bike with my phone in a jersey pocket and hit a bump, launching the phone out of the pocket and onto the ground at about 30 km/h. The screen protector broke and there are gouges in the front frame and one of the side panels. I have a spare screen protector and found the side p...

So I just bought one of these things today and, of course, one of the o-rings is missing. Does anyone know the exact size (ID and thickness) needed?