The bestselling Water Wow! series by Melissa & Doug is perfect for introducing young kids to writing and colouring. Each set includes water activated sheets and a chunky pen that you fill with water. Once the water dries, the sheet becomes blank and can be re-used. Great value for money and no-mess. No wonder Water Wow! is a bestseller. This learn-to-count book includes numbers 1-20 to trace, alongside pictures of familiar objects to count. There are empty lines to practice writing numbers too. The chunky-sized water pen is easy for kids to hold and stores neatly right in the front cover, perfect for trevelling.