This is an excellent sd card case. The cards fit their slots snugly, but not too tight. Seems though, very durable, and closes securely. I carry it in the woods to transport my sd cards when I swap them out in my game cameras. I appreciate the key ring on top, I keep the keys for my game camera locks attached to the case. I've got multiple brands of sd cards and they all fit well. The reviews that the cards fell out or fit too tight may have been defective units, the purchaser should have exchanged them.