Features: brand new and high quality INSTANT DETECTION. This counterfeits money detector marker is specially formulated to deliver accurate and easy results within seconds. Expose a fake with a professional bill detecting pen. SAVING MONEY. By checking and rejecting bad currency with the bill marker counterfeits marker currency pen. Effectively assuring you profits will be protected from fraudulent counterfeits for an extended period of for time with these counterfeits detector pen. COMPACT AND PORTABLE. Total length in 5.3 inches, small and portable, perfectly fits for your purse, pocket, handbag, etc. WIDE APPLICATION. Fit for most various kinds of currency. Widely used in shops, supermarket, bakery, cafe, grocery store, clothes shops, bookshop, shopping mall, etc. EASY TO USE. Simply draw a line on your cash, the colors will keep still when is real currency. When is fake bill the color will turn into black, and disappear within seconds. Specifications: Material: Plastic Color: Blue; Black; White Length: Approx. 13.5cm/5.31in Weight: Approx. 17g Package Includes: 1 Pc Currency Detector Marker note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!