Use the refillable chunky water pen to color with water and reveal vibrant colors on 4 unicorn-themed spiral-bound coloring boards. Reusable pages are white with simple line drawings when dry; reveal colors, patterns, and scenes when wet. Chunky-sized water pen is easy to fill, easy to hold, and stores in the compact, spiral-bound book, a great mess-free travel activity. Promotes creativity, fine motor skills, early writing and reading skills, color recognition, and storytelling. Makes a great gift for girls and boys, ages 3 to 6, for creative hands-on, screen-free play.