items located in "sliding" credit card slots (I have about 5 or 6 cards in each moving slot which seems to be the maximum you can - not sure where the number 15 cards came from) make the unit difficult to close and lock. I put my driver's license and health card in my side pocket and I can't quite close my wallet. not the end of the world as I just put it in my pocket and not worry about anything falling out.
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