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
- Invisible Ink Pen Review by Michelle HAmpton
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... (Posted on 5/18/13)
- Nice Product Review by Derrick Jackson
The kids have really enjoyed the invisible ink markers. Trying to come up with other ways to use them. (Posted on 4/13/13)
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- Does this wash off?
Yes, our markers are washable.