Penny keeper works really good. Hard to open to use. But other than a little elbow grease does the job.

These are pretty good cases for the price. I got 4 different kinds of these cases for all of the different coins I wanted to put in them, and they all fit their respective cases perfectly. The only negative, which doesn't diminish the value of the product for me personally, is that they are hard to open. I used a push pin and got them opened quickly.

THEIR DELIVERY IS FAST AND CORRECT