Set of 3 Invisible UV Blacklight Ink Marker Blue Red Yellow with UV Lights
These UV ink markers are completely invisible in normal light, but illuminate incredibly bright with the included UV pinch lights. Use these ink markers to implement security procedures, secretly mark your valuables, write hidden messages, artistic application, or just for plain fun! Each marker measures 3.5 inches and is full of our special blend of UV ink, so you get long lasting UV special effects. Each marker has a brightly colored plastic body which designates the ink color inside.