This exciting Melissa & Doug(R) Water WOW! Alphabet ON the GO travel set is a great no-mess activity book for long car trips and vacations. The refillable water pen lets your little one fill in the four pages of this coloring book to reveal colorful alphabet-themed details; there is a search-and-find activity for each scene. Just let the page "dry" to erase the pictures and start all over again! | Melissa & Doug Warter WOW! Alphabet Water Coloring Toy