Problem with one corner. Withstood use well

I originally got a $40 glass from the phone store to save time. The next day it had a crack and was too thin. I bought this one for the price and because it looked similar to one I had before. The glass its self is sturdy enough. Install was easy except one corner has not fully adhered. There is an arc that starts at the return arrow and arcs up to the middle of the long side of my phone that looks like a giant air bubble. I re instead the same glass 3 times to make sure it was not air I have used smoothing tools ect. It sits on the glass and is not lose it seems to still protect so I am leaving for now, I may try the second piece of glass if it bothers me enough. Their is a tiny less then a milliliter of space on one side when you line it up with the speaker if you dont have a case on it might be an issue. For the price I am ok with this product. It has held up longer then my more expensive one

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