La description

It's simple to get your doodle on: Just add water to the Magic Water Pen then start drawing on the mat.

 Color appears when the water-filled marker touches the mat, then quickly evaporates to leave a clean slate that's ready for more fantastic drawings.

The Aqua Magic Mat isn't a pool or tub toy, but without water its no fun at all. Its just a drawing mat after all, but kids will like the novelty of its disappearing colors. The drawing mat is large enough for several kids to doodle on at a time, using the included magic water pens that do not transfer color to other surfaces,Color from the pen appears when water touches the mat; it then fades out without a trace in 5 minutes or so. Thats it: no ink, no paint, and no mess.

Method of use

1. Filled with clean water to brush, you can freely canvas painting.
2.Painted between brush painting handwriting appears immediately.
3. As the water evaporates away as the natural handwriting, but also to draw to write.