Invisible Fluorescent Crayons
A popular item to invisibly mark articles such as currency, tires, paper, wood, metal, glass, etc. for identification and thief detection purposes. They are practically invisible on most backgrounds, but highly fluorescent when exposed to a long or short wave UV lamp.
| W-CRINV-O | 2 oz. | Invisible | fluoresces Bright Orange |
| W-CRINV-W | 2 oz. | Invisible | fluoresces Bright White |
| W-CRINV-Y | 2 oz. | Invisible | fluoresces Bright Yellow |
| Call for pricing. |