3PCS Invisible Ink Pen with UV Light Security Marker

2 in 1 Invisible Ink Pen Emergency Flashlight
It writes with special ink which is invisible in normal light.
Simply write a message with this UV Marker Pen, then light up your message with the mini UV light.
It can be used on any dry surface, such as paper, glass, metal and body.
Powered by 3 x AG3 button cells.
Random color.
Specifications
Name
Invisible Ink Pen
Material
ABS
Color
Random
Product Weight
11g
Length
13.3cm