Budding secret agents can use these 2 pens to write messages which can only be seen under the pen’s UV light. The perfect gift to encourage writing practice without the pressure of handwriting practice! Easy to use and tons of fun.
Step 1: Write a secret message
Step 2: Use the secret lamp in the pen lid to read the message
Each pen uses 3 LR41 Lithium batteries which can be replaced by unscrewing the pen lid.