Invisible Ink Pen Secret Formula Disappearing Ink Pen, Blue

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Disappearing Ink Pen

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This is the genuine disappearing spy ink pen,it looks just like a normal pen, but the writing will disappear automatically and gradually in about 1 hours Make sure you dont press down too hard and leave dents in the paper! The ink will disappear, but creases won't which can give away any pranks. Ink started really disappearing after ten minutes, and after around two or three hours left barely a trace, so keep in mind that it does take a decent amount of time.

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How Does Invisible Ink Work?

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