Simply use the pen to color in each scene–details and vibrant color appear with every stroke! Then let the page dry to erase the pictures and color it in again and again. This space-themed book includes four exciting scenes to color (satellites, rocket ship, lunar landing, and space station), and a search-and-find activity for each scene. The chunky-sized water pen is easy for kids to hold and stores neatly right in the front cover, making this Water WOW! an ideal travel activity book and travel toy for kids!