About this item

Dri-Mark Counterfeit Detector Pens are designed to quickly and easily identify fake U.S. currency. These pens use a special chemical ink that reacts with the paper of genuine U.S. bills, leaving an amber or light mark. If the mark turns black or dark brown, the bill is likely counterfeit. They are easy to use, portable, and recommended by experts for loss prevention in various business environments. The pens are made in the USA and feature precision-fitted parts to ensure a long shelf life and prevent dry-out if recapped.