Item Notes: Quick and simple way to prevent fraud by detecting counterfeit currency Just mark a small line on the bill and observe results Mark a line on bill amber indicates a genuine bill, black or Dark brown means bill is suspect Box A1 About us: Vanessa Jane is a family-owned business based in Indiana. We sell only authentic merchandise from brand new to used, and list new inventory daily. Make sure to put us on your favorites to see what's new each day! We source all of our inventory from reputable sales channels, including: Macy's Amazon Walmart Home Depot Office Depot Lowes Build.com And many more Listing SKU: VJ4097553760329 Box A1 (Blue-4) Box A1 (Blue-5) Relisted: by Martha Russel