House Of Marbles- Spy Pen Flashlight Children's 240006

I-Spy Invisible Ink U.V. Light Pen

Write secret messages that are only visible when using the built-in U.V. light!Publisher's Description of I-Spy Invisible Ink U.V. Light PenThis clever spy pen lets you write secret messages only revealed by the built in U.V. light! Perfect for any budding spy.