The currency detector pen is an essential tool for businesses and individuals who handle cash regularly. Simply mark a bill with the pen, and if the ink turns dark, the bill is likely . This quick method helps prevent financial losses and ensures that you only accept genuine currency. Ideal for retail stores, restaurants, and any cash-handling environment. Features -Color:Black -Material:PP -Size:13.50X1.30X1.00cm/5.31X0.51X0.39in -Portability: the portable design allows you to carry the pen in your pocket or backpack, making it convenient to test money anytime, anywhere -Waterbased ink: equipped with a waterbased ink core, this pen is easy to use and ensures clear markings on for accurate detection -Easy detection: simply mark the a bright area with the pen; a light yellow color indicates genuine money, while brown to gray suggests it may be -Versatile use: ideal for use in restaurants, retail stores, convenience stores, markets, and other locations where cash transactions occur - material: made from materials, this pen is designed for use, providing reliable performance over time Package list: 5 x Bill Detector Pen