Inside the case is a clear window for your ID, along with three slots for credit cards or other forms of ID. There is also space behind the slotted section for additional cards. The main section of the case has gusseted sides that can expand to hold even more! Pack those cards, ID's, money, or whatever you need into this expanding case. You will not believe how much it holds! Overall dimensions when closed are 4" x 3". Gift Boxed.