The banknote pen features a sleek and portable design, making it convenient to carry and use wherever you go. Its water-based pen is safe for all types of paper currency, ensuring that your bills remain unuesd during the verification process. Features -Color:Blue -Material:PP -Size:13.50X1.20X1.00cm/5.31X0.47X0.39in -Smooth writing: the water-based ink makes sure smooth and effortless writing, making it suitable for everyday use and other tasks like cash verification -Fade-resistant ink: the ink of this money tester pen is designed to resist fading, ensuring that your markings remain clear and legible over time -Multipurpose: suitable for a variety of uses including cash verification, marking, anticounterfeiting, and more, making it a versatile addition to your tool kit -Comfortable grip: the cash security marker pen features an ergonomic design that provides a comfortable grip, reducing discomfort and preventing slips during use -Ample for use: the banknote detection pen set offers an abundant choice for long term use, making it a practical choice for both businesses and individuals Package list: 10 x banknote detection pens