Orange permanent highlighter ink from Noodler's, made in USA.
Comes with eyedropper cap.
 
Special Properties:
Partially Bulletproof: Some of the color of this ink may run or fade if exposed to water, solvents, or UV light, but a Bulletproof core color will remain unaffected and perfectly legible.
Forgery Resistant: This ink is impervious to lasers, alcohols, and solvents used by forgers.
Fluorescent: This ink glows under UV light.