Invisible Ink Pen and UV Light

SKU: THK-548012
Delivery Options:


Earn 15 Bonus Points


Encode secret messages for friends and family! Invisible ink pen uses special ink that is only visible under ultraviolet rays - so it's super handy that the flashlight on the end of the pen happens to be a UV light! Included manual provides information on how to use the pen to discover other UV-reactive materials.


Recommended for ages 8+

Product Specifications

Requires 1 AAA battery (not included).

Why We Love It

Thames & Kosmos is one of our favorite science companies, for their commitment to high-quality components and a firm foundation in the scientific method. No matter the project, kids are guaranteed to find success while learning something new.