Discover the magic of Imagine Ink with Bendon's Gabby's Dollhouse Imagine Ink Ink 4-in-1 Learning Box Set! Each set features high quality content delivered through the fun of magic reveal learning activities. Dive in with your little one to see answers magically appear, play mess-free games, and color a water surprise board again and again for hours of mess-free learning fun. Your little artist will love revealing answers and hidden images, and you'll love the magic of mess-free learning! Imagine Ink markers are non-toxic and invisible on most household surfaces. This is an officially licensed product from Bendon that is ideal for children ages 3 years and older.