Using this card holder is super easy. Just open the folding pouch and slide your cards into the two pockets. You can carry travel passes, bank cards, IDs or student cards with you. When you're using it, avoid sharp objects that might scratch or tear the PVC material. To keep it clean, simply wipe it with a soft, dry cloth. Don't soak it in water or use harsh chemicals. With proper care, this card holder will serve you well for a long time.