Wham-O

These WHAM-O Magic Pens will allow you to create many interesting designs. These fun markers change color or reveal hidden message you create when you use the special activator pen. You can make the pen color change or even erase your markings entirely with these amazing color changing pens. They come in 20 bold colors to allow your imagination to sore. Additionally, the activator pen helps erase mistakes that would otherwise be left on your artwork. These unique coloring pens are also non-toxic as well as easily washable.