Invisible Ink Pens by House of Marbles

Secret Message Pens

Part of our “Super Secret Spy” range this clever spy pen lets you write secret messages only revealed by the built in U.V. light! Perfect for any budding spy and great for party bags. Comes with a handy hook so you can keep it safely attached to a pad of paper.

*each pen sold separately. 

Ages: 6+

Dimensions: 2 x 2.5 x 13cm