UV PEN WITH INVISIBLE INK - Glow Specialist - Glow Specialist

This pen allows you to write invisible messages with invisible ink that can only be seen if you shine on your message with the built-in UV light.

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UV PEN WITH INVISIBLE INK - Glow Specialist - Glow Specialist

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UV PEN WITH INVISIBLE INK - Glow Specialist - Glow Specialist

DirectGlow Invisible UV Blacklight Reactive Fine Tip Ink Marker – DirectGlow LLC