Ultraviolet Marker Red

The Red Ultraviolet Marker Pen is a versatile tool designed to write invisibly on a wide range of dry surfaces, including metal, paper, glass, paint, skin, and currency. The markings stay hidden until exposed to an ultraviolet light source such as the Ultraviolet LED Torch. Perfect for marking personal property, confidential notes, theft detection, and covert communications. The ultraviolet ink is heat-proof, waterproof, non-toxic, and oil-based. Available in a Green Ultraviolet Marker Pen.