Reveal a rainbow of colors on every page with Bendon's Thomas All Engines Go Imagine Ink Magic Pictures! This patented technology magically reveals a rainbow of colors with just one Magic Ink marker. Your train enthusiast will find beloved Thomas and Friends characters throughout this coloring book. Your little artist will love finding favorite tank engine characters, and you'll love the magic of mess-free coloring! This is an official Mattel product and is ideal for children ages 3 years and older.