Secret Agent Invisible Ink Spy Pens
Secret Agent Invisible Ink Spy Pens
Secret Agent Invisible Ink Spy Pens
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Secret Agent Invisible Ink Spy Pens

Regular price
£2.60
Sale price
£2.60
Regular price
£3.95
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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.