Using this ID case is a breeze. Just slip your ID into the clear window so it's visible. You can use the zipper compartment to store small items like cash or additional cards. The key ring is great for attaching your keys. When it comes to maintenance, use a soft, dry cloth to wipe off any dirt or dust. Avoid exposing it to excessive heat or moisture as this could damage the materials. If there are any stains, gently clean them with a mild soap and water solution, then let it air - dry. That's all you need to do to keep your ID case looking great!