Spy Pen with UV

CPN-561463474

This magical invisible ink pen allows you to write down your secret information and hide it,Once Write down your secret message with this invisible ink pen,Wait a moment,The words or patterns you write will disappear,You can turn on the light on the pen's cover and reveal the secret of the secret message.spy gear for kids. Harmless and tasteless ink, healthy toy for your kids! Smooth and colorful disappearing inks on t-shirts, paper, skin and any surface! Permanent but washable!