With this black light marker, you can write invisible messages that will only be revealed under a black light. You can use it to make black light posters or for a demonstration of Ultraviolet Rays in your next science class. Invisible marker ink can be removed with soap and water. Use it with our personal Mini Black Light keychain. They're great together! Recommended for children ages 6 and up.
- 2 Invisible Ink Markers
- Activity Guide
NOTE: You'll need a black light to decode the message
- Does this wash off?
Yes, our markers are washable.
Invisible Ink Pen
Michelle HAmpton - November 12, 2012
We used these at my daughter's 9th birthday party. The girls loved them. They were making mustaches and cat whiskers on their faces. They colored their finger and toe nails. Writing messages on their hands and legs was the obvious. Lots of giggles all evening long...
Derrick Jackson - August 27, 2012
The kids have really enjoyed the invisible ink markers. Trying to come up with other ways to use them.