This pen, adorned with images of dinosaurs, makes use of ink that can only be seen with UV light. Write a secret message, then shine the light in the pen lid on it to reveal it!
- Light in the pen lid uses 3 × LR44 batteries, which are included
Safety information:
- Not for children under the age of 3 years.
- Button batteries can be easily swallowed and cause serious harm. Keep them away from children.
- Ensure battery cover is secured correctly before use.