Secret Message Writing Set

One of our Elementary teachers thought this would be a terrific extension to her lessons on written language and writing progress through the ages (from cuneiform and hieroglyphics to computers). We think it is just plain fun!

Children will love writing and revealing secret messages with this ingenious pen set. The invisible ink contains special compounds only visible under ultraviolet light. Squeeze the cap to shine a UV beam onto the paper to reveal the secret message.

Includes two pens. Ink is non-toxic but permanent.