Theo&Cleo Genuine Leather Business Card Holder Expandable Antimagnetic Credit Wallet With ID Window, Black A simple wallet for everything you need with out the backpain of carrying a big wallet. Case fits up to 45 business cards or 16 credit cards. Card slots for ID cards, credit card holder, business card holder or wallet, sleek and elegant design. Size: 10.5 X 8 X 1 cm. Size after expansion: 10.5 X 15.7 X 2.5 cm.