New Counterfeit money Pen. This is a new counterfeit money pen. Great for detecting fake currency. It measures approximately 5 5/8" (142 mm) long. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.