Want to write top secret messages? Try these Gelly Roll UV pens! They dry clear, but shine bright under the included UV light. Get a set for you and your friend and you can write secret notes to each other.
From the manufacturer:
Unlock the magic of Gelly Roll UV, the first UV-visible gel ink pen. Our UV ink dries clear and can be seen only under UV light, where the ink glows beautifully in 3 luminous colors: Red, Blue, and Green.
Explore your creative potential and turn every project into a radiant masterpiece. Gelly Roll UV is not just a pen, it's a tool of transformation.
Every Gelly Roll UV pen set comes with a complementary UV keychain light. Simply press on to activate the light and watch your creations instantly shine. For extended use, click the "hold" button on top of the keychain light, and enjoy the UV effect for as long as you desire.
A 1.0 mm ball tip allows you to make a smooth bold line with minimal effort.