4 underwater-themed colouring boards and refillable water pen Reusable pages are white with simple line drawings when dry; reveal colours when wet Chunky-size water pen is easy to fill, easy to hold and stores in compact, spiral-bound book -- great for travel Promotes fine motor skills, early writing/reading skills, and visual discrimination Ages 3+; 6" x 10" pkg No-mess painting for kids! This exciting paint-with-water colouring book includes four reusable pages and a refillable water pen. Simply use the pen to colour in each scene--details and vibrant colour appear with every stroke! Then let the page dry to erase the pictures and fill it in again and again. This underwater-themed book includes four scenes to colour, 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, so Water WOW! books make ideal travel activity books and travel toys for kids.