Once your secret message has been written with this invisible ink pen, wait a few seconds to shine the light from the pen's cover and reveal the secret of the secret message.

MAIN FEATURES

• 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! Perfect for the RSVP's to wedding invitations. With many pieces pens, good choice for you in fun activities such as stocking stuffer, treasure hunt, escape room, or classroom activity.

• Built-in UV light: The product comes with an excellent built-in LED UV Light which includes Installed 3 Button Cell Batteries. Get creative by writing secret messages, sketching, and drawing. Messages appear when you shine UV light over them.

• Idea party gift bag: Party favors for kids: Kids will love these magic pens. Kids like these as spy pens to play different games and fun activities: Such as Surprise birthday parties, or games like revealing a top secret message to their parents or grandparents.also as Birthday Gifts,Halloween Gifts, Easter Day, Valentine’s Day Gift, Christmas Presents for kids and friends.

• What you get: Batteries included and installed, Pens will come in a variety of colors to keep the activity exciting (Please Be careful with small items: suitable for Children above 3 years).

PACKAGE INCLUDES:

• 4/6/8/12 x Invisible Ink Fluorescent Pen
• Transition: 1cm=10mm=0.39inch.