Melissa and Doug Dinosaurs Colorblast Book - ON the GO Travel Activity Use the "Magic" pen to color in the picture, and see vibrant colors, details, and patterns appear! Each page of the kids' activity book features a lively prehistoric-themed artwork to complete and a seek-and-find activity, too. Makes a great travel toy. Dimensions: 10" x 6.25" x 1" Recommended Ages: 3 years +