Kearing 0.5mm metal tip Invisible UV Marker for secret marking only visible under UV light#UV05

Description:

Kearing brand washable invisible UV marker used for quality inspection and secret-marking.It is common writing on textile,paper,plastic etc.Ink is permanent,with no smell and no color.Writings only visible under UV/black light!

Applications:

1. for secret marking,intel inspection,can be seen under blue light

2. For temperary marking,drawings can be easily and quickly erased by water

3. Conforms to ASTM and EN71quality standard.

4. Note: can not be used for kids under 3 years old

5. Replace the cap in time after use!