Uv Invisible Ink Pen (Secret Message Marker, Money Checker Tool), Uv Flashlight Integrated With Invisible Ink Pen Reveals Security, Multifunction Luminous Light Invisible Ink Pen(#A), By Meiiso

Multifunction Luminous Light Invisible Ink Pen UV Money Checker Young Drawing Learning Pen 20ml
Feature:
Quantity: 1PCS
Little Mans Little Lady Great Party bag fillers toys for Young.
Writes on most surfaces.
With built in Ultra Violet Light, Young will write plenty of secret messages to each other and its not visible to the naked eye turn the UV light on the writing appears
Note: You can write on most surfaces, but whether it can stay on the surfaces
It depends on what kind of the material you write on.
If you write on the papers, it can stay on permanent; if you write on the metal or plastics
It may couldn't last long, because it will be erased easily due to the characteristic of the metal and plastics.
Size:about 13CM
Material:Plastic
Package Content:
1X Secret Message Pen