The SMART MONEY™ Counterfeit Money Detector Pen detects authenticity on U.S. currency instantly. The patented formula leaves a temporary LIGHT/AMBER MARK if the bill is GOOD, or a DARK BROWN or BLACK MARK if the bill is SUSPECT. Each pen tests over 10,000 bills.

Component Color: Black
Maximum Imprint Area:  1 1/2” X 1/2”
Product Dimensions: 5 1/4” long