1. Multifunctional design: This card holder key holder card holder all-in-one bag adopts a practical multifunctional design, which can easily carry many different types of items, including credit cards, ID cards, access cards, keys and more. 2. RFID anti-theft technology: The advanced RFID anti-theft technology is built into the card holder, which can effectively prevent the card information from being illegally read and ensure the security of personal information. 3. Prevent magnetic field degaussing: The card case is made of high-strength anti-magnetic material, which can effectively prevent magnetic damage caused by magnetic field and ensure the normal use of the card. 4. Large-capacity storage: The interior of the card holder adopts a reasonable layered design, and the storage space can be flexibly adjusted according to needs, and can accommodate up to 20 credit cards, access control cards and other items. 5. Beautiful and practical: This card holder, key holder and card holder all-in-one bag has a simple and beautiful appearance. It is not only exquisite in appearance, but also extremely practical. It is an indispensable companion in your life.