Product Review

These UV ink markers are completely invisible in normal light, but illuminate incredibly bright in UV blacklight! Use these markers to implement security procedures, secretly mark your valuables, write hidden messages, artistic application, or just plain fun! Each marker is filled with our special blend of UV ink, so you get long lasing special UV effects. These markers are among the brightest available. 100% satisfaction guaranteed! Each marker measures about 6 inches in length and is non refillable. Colors go on invisible, but show brightly in UV blacklight. Each set purchased includes 4 blue, 4 red, and 4 yellow invisible UV markers and 4 mini UV pinch lights that illuminate the ink.