Text visible under ultraviolet light. Fashion and personalization. 1 UV invisible light pen. More places to use it! Light weight, easy to carry. The actual color may be slightly different from the image due to different displays and lighting effects.
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Is there a child in the world who doesn’t like the idea of sending secret messages in invisible ink? I haven’t met one yet. These pens will be a hit with any child who can write and who enjoys making up their own games. It’s the simplest thing but it really is fun. These would be a treat for kids who like secret spy games, crime-solving or super-hero games, for those who like passing secret notes or leaving clues that only certain people can see.
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