Set of 3 Invisible UV Blacklight Ink Marker Blue Red Yellow

Completely invisible in regular light
Incredibly bright under UV blacklight
3 full size ink markers
Long lasting glowing effects
Non refillable These UV ink markers are completely invisible in normal lighting, but illuminate incredibly bright under UV blacklight! Use these ink markers to implement security procedures, secretly mark your valuables, write hidden messages, artistic application, or just for plain fun! Each marker is full of our special blend of UV ink, so you get long lasting UV special effects. Don't be fooled More »