Water Magic 123 is a fun and educational activity book that helps to develop writing skills and learning to count with the use of 6 reusable boards! Simply fill the water marker with water and use it to form the numbers 1 to 20 along the dotted lines, watch as the coloured numbers appear and also reveal colourful pictures with the corresponding number of items and the number word beside it. The number activities magically appear and disappear over and over again! This book measures 8 x 6 inches. Not suitable fore children under 36 months.