These ultraviolet pens are ideal for marking currency or personal property, writing covert "invisible" communications, taking sensitive notes, etc. The markings remain invisible until examined under an ultraviolet light source. (Recommended for use with the Ultraviolet LED Flashlight).
- Dries clear- totally invisible to the naked eye!
- Easy to read under ultraviolet light
- Great for writing secret messages to others in-the-know
View Cart
