Invisible/colorless in normal light. Glows bright blue in UV blacklight. Please note, these markers do NOT glow in the dark. You must have a blacklight to get the glow effects. Extra large body with broad tip. Contains twice the ink as our standard sized markers! Safe for use on skin. Use for security marking (such as admissions) or create amazing invisible body art designs that glow in blacklight! These are the markers you want for semi permanent invisible marking.
Opticz Blacklight Reactive Large Tip Invisible UV Red Ink Marker
Invisible Ink Pen
Wrapables® Invisible Ink Pen with UV Light, Spy Pen for Writing
UV Light Pen Invisible Ink Secret Marker Ultra Violet LED Black
DazSpirit 7pcs Invisible Ink Pens with UV Light Party Favors for Boys and Girls, Detective Magic Pen Disappearing Ink Pen for Kids, UV Pen for
Wrapables® Invisible Ink Pen with UV Light, Spy Pen for Writing
Wrapables® Invisible Ink Pen and UV Light, Spy Pen for Secret
Invisible Ink Pen - ASJE031 - IdeaStage Promotional Products
Opticz XL Blue Blacklight Reactive Large Tip Invisible UV Ink
Invisible Ink Pens
1.MAGIC PEN: After writing with the pen, the ink will not be visible. You need to turn on the purple light on the cap to illuminate the writing area,
STENDA Invisible Spy Ink Pen 5 PCS, With UV Pen Light, Party Favors for Kids 8-12, Stocking Stuffers for Christmas, provide Thanksgiving, Halloween
SCStyle Invisible Ink Pen 28Pcs Latest Spy Pen with UV Black Light
12 Invisible Ink Pens With UV Light For Kids & 12 Mini Notebook