Tell the real deal from even the most convincing fakes with a handy uv light and money detector pen. Ideal for anyone taking cash in less formal situations such as car boots sales, fundraising events and more, this handy pen is suitable for use with both paper and the new polymer notes picking out the secret uv designs. Suitable for all major currencies, this clever pen can also be used to mark notes where a clear mark shows genuine currency. 2 in 1 uv light and currency detector penshine uv light to pick out secret uv reactive designsmark notes to test for genuine currencysuitable for paper and new polymer notessuitable for use with all major currenciessize 13cm l x 1.5cm diameterbatteries included