Contents: 6 Color Wonder Markers; 1 24-Page Disney Princess Color Wonder Coloring Book. Recommended for ages 3+. Colors only on Color Wonder paper! Won't color on skin, walls, carpet or clothing. Nontoxic. What is Color Wonder? Color Wonder Markers are designed to only color on Color Wonder Paper. It's magical! Watch the clear ink change to color in seconds as it dries on your Color Wonder Paper! The ink is clear but each marker is a different color. AP/ACMI - Arts & Creative Materials Institute Certified. Conforms to ASTM D 4236. All Crayola art materials are safe and nontoxic. Made in the USA.