Part of our Operation Bletchley range - a fun gift, budding secret agents can use these 2 pens to write messages which can only be seen under the pen's UV light.
- 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.
WARNING! Choking hazard, small parts, keep away from children under 3
Card, Plastic, Electrical, Ink
- Dimensions: Length: 16 cm Height: 2 cm Width: 5 cm
Shop the full Operation Bletchley collection here.
100% of the profits from all items go directly to ABF The Soldiers' Charity.