This UV blacklight reactive cyan blue invisible ink marker uses high quality permanent invisible ink. Perfect for blacklight security, art, entertainment, etc. Glows a bright cyan blue. Perfect for metal, glass, plastics, paper, etc. Will not wash off easily, and is only visible under ultraviolet light.

• Full size ink marker and LED mini keychain light
• Glows bright under included UV black-light
• Bright and bold fluorescent inks write on paper, fabric, skin...
• Use for blacklight security, art, entertainment, write secret messages, and much more
• Ink is non-toxic, high quality, long lasting, and environment friendly

Full size ink marker and LED mini keychain lightnvGlow