Home and Office Security: Blacklight Ultra Violet Invisible Ink Pen: Fine Tip Felt

Completely invisible in regular light
Bright blue under UV blacklight
Fast drying alcohol based ink
Adheres to any surface with ease
Safe for skin 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. More »