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

Invisible Ink Pen - Temu

ZUNTENG Invisible Ink Pen,7Pcs Spy Pen,Invisible

Mossad Covert Spy Pen with Heat Activated Disappearing Ink : Office Products

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Invisible Ink Pen - Temu

Invisible Ink Pen - Temu

Need to leave a note for someone, but don't want to them to be able to show anyone else? The secret formula unique ink pen writes and looks like a

Invisible Ink Pen Secret Formula Disappearing Ink Pen, Blue

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.

Semli Funny Magic Invisible Ink Disappearing Pen with Blue Ink Ball Point Vanishing in 1-3 Hour (10)