This compact secure leather wallet can expand to hold many cards. It has 3 card slots on one side, an ID window with thumbhole on the other, and a zippered pouch in the middle which holds multiple cards and/or cash. We started the RFID protection industry in 2006. We continue to lead this industry by creatively applying shielding technology to a variety of products that block radio waves and thereby prevent thieves from remotely accessing your private information (including your complete credit and debit account numbers). Beware of imitations that aren"t made by Identity Stronghold. We have tested many of those knock-offs in-house, including some of those hard metal wallets. Many do not shield effectively. In fact, some knock-offs actually include documentation admitting they are not 100% effective. You can be sure you are protected when you use Identity Stronghold RFID blocking products.