Dri Mark 5 Pack Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 5)

The product works. We've used it in our workplace and found fake bills. Love this and woild buy again.

Great product with a great price that works perfectly detecting counterfeit money. If you leave the USA, grab some of these pens and take with you while traveling abroad to avoid fake US money bills in any of your exchanges on the road. Safe travels. Recommend. 5 stars.

My significant other uses these at work and have no complaints at all. They work great, and haven't failed him yet. He has caught a few counterfeit bills, and they are the only pen he trusts and will use. Absolutely a great pen

Works as advertised

These markers haven’t failed me yet, so I’d say they’re pretty accurate! It’s simple, if the color is really dark, the bill is fake. If it’s a light tan color, it’s real. I still use these at my business every day. I check everything over a $20 note, and sometimes even on the $20 bills. They’re a bit shorter than a regular sharpie marker but not by much. They seem pretty durable, I’ve used the same marker for about a year now and it hasn’t dried up yet. Great for small business or currency collectors!