Imagine Ink Mess-Free Activity Set Includes Themed Watercolor Books (Colors & Shapes, Numbers, Addition) Mess Free Coloring for Toddlers. The Imagine Ink 3-Pack comes with coloring books to help your little one learn numbers, colors and shapes, and addition in a fun and engaging way. Each activity book comes with an Imagine Ink mess free marker designed for smaller hands to easily grasp. Use the marker to fill in each activity and see hidden colors and pictures appear with every stroke.These activity pads are a delightful and educational gift for kids ages 3 to 7 years. These are great for car rides, plane trips or even at a restaurant! Officially licensed Imagine Ink coloring and activity book pack. Set also includes a Barn Bots door hanger.