Each of these protectors had two defects in the protective film. One is a crescent-shaped center screen and the other is a circular crack on one of the edges. It took me all three to figure it out. Installed the first two and thought I missed a hair or something on the screen until I checked tread 3 I found that there was already a small crescent shaped bend in the tread and a small circle also on the edge of only three was. WARNING: Check the protectors before installation, otherwise you may overlook the protector's imperfections. The first two times I thought it was air bubbles and tried to squeeze them out. In doing so I destroyed the squeegee, its cardboard sheet, but I applied so much pressure that it completely deformed the sheet. All I knew was that it couldn't be my fault as all the defects were in the same places and it took me 3 times to figure it out. Maybe I'll contact the seller to see if they replace.
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