EODVICS Invisible Ink Pens

Hide the Secret Message You Write: 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..Application: Invisible ink pen is suitable for T-shirts, paper. Perfect for the RSVP’s to wedding invitations, family activities, school activities, parties..Health and Safety: Harmless and flavorless ink is permanent but washable, a better gift for children. Children will like invisible ink pens..Package: 10 pens, reusable invisible pens with built-in lights have 10 different colors, but the ink is the same color..