ASR Tactical Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen

Once on paper, the ink appears normal for 15 minutes but slowly starts to disappear; fading completely after about an hour Discrete and easily

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ZUNTENG Invisible Ink Pen,7Pcs Spy Pen,Invisible

【Interesting Spy Activities For Kids】Invisible pens with built-in purple lights. Batteries included and installed. Please BE CAREFUL with small items

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Disappearing Ink Pen

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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