Dri Mark 351B Money Detector Pen, Single Counterfeit

Our easy to use single counterfeit money detector pen is recommended by experts with our special formula for detecting bad money. Accept no substitutes for the original counterfeit pen!. Famous iconic Dri Mark packaging lets customers know that they are getting the industry standard. Still, by far, the best selling product in the category. Simple to use. Make a small mark on US currency. A clear/amber mark indicates US currency paper. A dark mark means the bill is probably counterfeit.