Invisible pen & light

With this invisible pen you can write messages that can only be read in special light! The pen allows you to write with invisible ink that only becomes visible when you shine a light over it with the UV light integrated into the pen. Perfect for little detectives, secret missions or fun surprises. The compact design makes it easy to take with you everywhere – at school, on birthdays or for creative play at home. An exciting gift that is guaranteed to arouse curiosity and inventiveness!