Counterfeit Bill Detector Pen

Don't lose your hard earned profits to counterfeit currency. This inexpensive ink type pen will tell you if the bill is real or not in one second just mark the bill with this pen and a dark brown mark indicates a bad one while a light mark indicates a real one. Used by supermarkets, jewelers, even banks all over the world, this pen will protect you against US, European and most Asian Currencies.