To use this wallet, simply open the stud fastener. You can put your cards in the 3 card slots and use the window compartment to display your ID. Place your notes in the note compartments and other small items in the additional compartment. When it comes to maintenance, keep it away from sharp objects to avoid scratches. You can clean it with a soft, dry cloth. Also, don't overstuff the wallet as it may damage the leather and the fastener. And remember, the RFID technology helps protect your cards from unauthorized scanning, so use it with confidence.