13cm Invisible Ink Pen with UV Light - Random Color

Write on any surface with the invisible ink pen! Then view it with a UV light to see invisible messages.
Features
High-quality refills, writing is fluent.
Replaceable refill, simple and quick.
UV light to check the paper money, detect the material of your clothes and so on.
Random color to be sent.
Specifications
Material Plastic
Color Random(red, blue, purple, yellow)
Battery Mercury-free batteries
Product Weight 10g
Length 130mm
Package Contents 1 x UV Light Pen