2 X UV invisible security Marker pen + Built in Ultra Violet LED Light-Pack of 2

Write on MOST surfaces.With inbuilt Extremely Violet (UV) Mild.
No longer visable to the bare eye flip the UV Mild at the writing seems.
Write mystery messages and use the UV Mild to turn the writing.
Hiding pin numbers or passwords.UV Mild may be helpful for detecting counterfeit financial institution notes.
Suspect any individual is stealing money. Merely use the pen to make a distinguishing mark and use the UV Mild to make tests.
Package deal integrated: 1 ¡Á Invisible Pen(three BUTTON BATTERIES INCLUDED)
UV invisible safety Marker pen
safety Marker pen
Extremely Violet
invisible pen
2 LED Mild