DRI CFD50PKThe Dri Mark Compact Counterfeit Detector Pen (DRI CFD50PK) is a currency verifying pen designed for businesses that handle cash transactions, such as restaurants, banks, retail stores, and entertainment venues. Users make a small mark on a bill; a clear or amber mark indicates genuine currency, while a black or dark mark suggests a counterfeit. The pens are compact and pocket-sized, facilitating ease of use in fast-paced environments. Each pack contains 50 pens, providing a bulk supply for mult