Great for storing numerous cards. A notch allows to hang a neck strap or a strap and a plastic label on the back allows to note what each card. Unfortunately, the cards do not enffichent clicking like a machine, the locations are just a little smaller than the size of a card to remember, to see if the system is used over time. Moreover, it is difficult to remove cards without nails. The plastic used is strong enough not to look fragile.