Water Magic Drawing Cards

Age: 3+ Educational and Fun - This Magic Book combines with the basic principle of grating, and shows the amazing cartoon animation when moving the grating plate. Animation and Doodle 2 in 1 - Not only work as an amazing animation display, but also a magic water book. No ink, just add water in the pen, then paint, wait it to dry, disappear and paint again. You don`t need to erase at all! Parent-child Interaction Time – Join your child when he or she is playing, give a short introduction of the underlying principle to your child to help learn simple physics basis. Provide both entertainment and education.