Mini Portable Universal Detector Pen
There are millions of counterfeit bills in circulation. Why run the risk of accepting a bogus bill?  Our universal counterfeit detector pens use a specially formulated chemical that detects fake currency instantly.  Simply press the tip of the pen to the bill-- if it turns yellow or clear the bill is good, if it turns black or brown the bill is suspicious.  Instructions printed on the pen.

Works on most currencies world-wide.