Using this card holder is easy. Just open the folding pouch and slip your cards into the two pockets. It's great for keeping your important cards organized while you're on the go. When using it, make sure not to overstuff the pockets as it can affect the folding mechanism. To maintain it, simply wipe it with a soft, dry cloth if it gets dirty. Don't use harsh chemicals as they might damage the PVC material. This card holder is perfect for everyday use and travel, so keep it handy for all your card - carrying needs.