Write secret messages only you and your friends can see!
Each pen is filled with invisible ink & comes with a uv light. Write your secret message then illuminate to read.
- The Invisible Ink Spy Pen to write, read, and share invisible messages
- Use the UV light to reveal the top secret spy message.
- Requires: 3 x LR41 batteries (non-relaceable)
- Suitable for ages 6 & up