Our amazing Magicolor technology lets children pick a marker, fill a scene, and see colors magically appear on the page--all completely mess-free! The four included markers have ink that’s invisible anywhere else but creates instant color on the 18 pages of game and adventure scenes. As a bonus, the spiral-bound book’s all-inclusive format comes with handy storage for the markers, making it great for travel! This product is certified by the Forest Stewardship Council. FSC certification ensures that products come from responsibly managed forests that provide environmental, social, and economic benefits, and that forests are protected for future generations. Please note that FSC certification applies to new inventory only (FSC C156584).