My best Kid offers the water marker book Magic Aquarium and Vehicles here in a set of 2. It is still available in 8 different variations on on our store, which are ideal for a birthday party of the kindergarten friends as a souvenir. Fill the pen with water and the background becomes visible - with multiple use of the product. It contains 4 pages that children can color and reuse again. Since no paint but only water is used for coloring, it is completely non-toxic and thus provides magical fun for all kids.