Beware, it stuck the cards!

I was glad of this small purchase to protect my cards and do not scatter and perdes.
So ... what I retrieves a shabby!
Being stuck the cards in the box, broke in me: a little piece of plastic next to the "stuff that slips to lock" it's broken, not too serious, but actually force , it has opened the card in half, lost the tip that makes lock ... (not easy to explain ...)
suddenly, we must be careful how to insert and extract their location !!
Was it a fault on the card, perhaps, but in any case I note with others the same problem of "stuck" map.
so it's not a bad accessory, but attention to the use ...