The Invisible Ink Pen with Mini Keychain Blacklight is simple and fun to use. You can write your invisible message on a suitable surface, then shine the blacklight on it and see it glow! Bringing together a unique glow in the dark marking pen with a blacklight torch gives you an amazing variety of applications. Write a secret message Personalize objects
Product Features
- Ink visible only under UV Blacklight.
- Dries invisible on most surfaces. Mark a variety of items.
- Mini blacklight 395-405nm with 3 replaceable AG3 batteries include.
- Push button continuously to light
- Non-toxic and washes of easily.
a wedding invitation must-have!
Super cool! We used these to write names on …