The Colorful Mini Card Book is a very beautiful and unique card book. The Colorful Mini Card Book can hold up to 32 cards. These cards can be your business cards, debit cards, credits cards and so much more! 3 index cards are also included to help you sort your cards. You can also use oil based pens to write down a memo and use an eraser to erase it later. Please check out the photos to learn more!