Funtime - Invisible Ink Spy Pens
Use the invisible ink spy pen set to send secret messages to your friends. The invisible ink only shows up under the UV light on the pen cap.
• Hide your writing with the invisible ink pen
• Use the UV light on the pen lid to reveal your secret messages
• 2 pens in each pack. One red, one black.
• Requires 3x LR41 batteries (included, not replaceable)
• Age: 3+