Colouring with water as if by magic! This special colouring block has dino-strong motifs and puzzles on every page. Little and big dino fans can do without an ink box or additional pens! Simply fill the enclosed magic pen with water, colour in the pages and hidden colours and motifs appear. For endless colouring fun, these disappear as soon as the pages have dried. So the pictures can be coloured in again and again to your heart's content!