Discover the fun of secret messages! This two-in-one pen with blue ink and invisible ink is perfect for your day-to-day note taking and for writing SUPER TOP SECRET messages. Use as a normal pen, or write with invisible ink, and use the pen cap black light to reveal the secret messages. Use the special light on the pen to reveal your messages!
About this item
- Invisible Writing System
- Use the Invisible Writer to make secret messages
- You can use the blue pen which is part of the system to writer everyday messages
- The Invisible Writer allows only you to read the messages
- Requires three AG10 batteries (included).
- Includes both invisible ink and regular black ink.
- WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.