Uscallm Invisible Heat Disappearing Fabric Pen, Invisible Ink Pen 14 Pack,KidsSecret Message Pen Built-In LED Light, Fun Spy Gear ForChildren, EducationalToyForBoysAndGirls

Uscallm Invisible Heat Disappearing Fabric Pen, Invisible Ink Pen 14 Pack,KidsSecret Message Pen Built-In LED Light, Fun Spy Gear ForChildren, EducationalToyForBoysAndGirls

Set of 7 Invisible Pen Maker Kids Message Pen with Built in Light
Feature:
Color:, blue, red, green,,, yellow
Ink properties: Invisible ink
Style:
Specifications: 13.4cm
Use the ink pen to write words or messages, the writing will disappear when the ink is dry.
when you the light to them, the behind reveals
For saving batteries, plug the write card tag back to the pen when you don't use the light
Please don't the light directly to eyes
Package Content:
7 pens