when i first ordered this product, it was damaged and unable to open due to (i'm assuming) it's harsh treatment during shipping. after contacting amazon, i did receive a fully functional one that did open. you can program a pin to unlock it with, and it seems pretty secure. i haven't tested it's "water resistance". the safe does come with two keys alongside it, so if you program a pin i recommend you find a safe spot to store the keys. other than that it has enough room to store plenty of items that aren't too big in size. i hope this review was helpful.