Invisible Pass CaseDESCRIPTION [Invisible Printing Pass Case] This is a bifold pass case from the popular Invisible Printing series. There is actually a "part of the buckle" between the leather, and the more you use it, the more shades of colour you get. In addition to the main card storage space, there are three compartments on the outside and four on the inside. [8 card compartments] The interior is designed to be easy to use and is highly practical.