Dri Mark, DRI3513B, Counterfeit Detector Pens, 3 / Pack, Black

These are good money marker pens, and they last a long time before drying out.

This pen works as it claims to work by the manufacture. I always carry it with me to test money when Im ask for change of bills

These detector pens came in exactly as pictured and they're great. I compared prices to other sellers and brands and these ones seemed like a good price for the pens you get.

Amazing product at a great price!

I've been using the DriMark brand for over 20 years now. It's simple and very reliable to use. I always use this to check my bills to make sure they're legit. I always draw a small mark on the right hand side in a blank area. A yellow mark means it's ok, while a brown/black mark means you might have a questionable/bad bill. It's a useful tool to have when you use/deal with a lot of cash.

I am rating the counterfeit end this way because they work amazing and then this day and time they need to get a lot of use. As for Walmart ordering and delivering that is truly truly amazing I don't know how I lived without it !!! I love it !!! If you haven't tried it yet please do you'll be amazed !!!

I have been using my pen for a while now and I recommend it.

These pens work well detecting counterfeit bills .I was amazed and quite pleased ,just a little mark and you know if good or bad.

Ordering was easy, fast, & accurate. Received items a lot faster than we expected. Pick up at the Bremen Store was fast & easy. Loved the items. Exactly what we needed.

We had a garage sale and our local police department warned about counterfeit bill in small denominations such as $5's, $10's and $20's. We did not detect any counterfeit money so I guess these pens worked.