This pen contains a specially-formulated chemical solution that allows the user to verify $1- $5- $10- $20- $50 and $100 bills. Just apply the pen’s tip to the currency and press down to release its liquid chemical. A gold “ink” mark verifies legal tender and will disappear in a few days. A black mark warns of a suspect bill and stays until the bill is destroyed. Easy and safe! PEN-125.00
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