Counterfeit Detection Pens
COUNTERFEIT DETECTION PEN (3 Pack)
Counterfeit Detection pens for U.S. money allow the user to determine if a U.S. bill is genuine. The user swipes the pen over the U.S. money and if the mark remains clear, the bill is a genuine bill. If the mark turns black there is a good chance the U.S. bill is counterfeit (The counterfeit detection pen does not work on Canadian bills).