With two Cardprotectors to hold double the content, the Twinwallet carries up to 16 cards, banknotes and receipts, but remains compact in size. The patented mechanism allows you to slide out your cards with one simple motion, ready for immediate use. The aluminum protects from bending, breaking and unwanted wireless communication. Holds 8-12 cards in the aluminum holder plus room for extra cards, business cards and paper money.