Convenient, economical Modeling Clay Classpack includes 12 classic colors of soft, pliable, nonhardening modeling clay. Children can shape, build, sculpt or smash. Crayola Modeling Clay is great for creating art or just playing with color. Because the clay always stays soft, you can enjoy the hands-on, tactile play again and again. Modeling clay is made of nondrying modeling materials with a soft consistency that helps children develop a sense of form and details. The clay also resists water thanks to its wax and oil-based formula, further lengthening its life span. Nontoxic modeling clay comes in four individually wrapped colors and is recommended for children ages 6 and up. Colors include pink, red, orange, yellow, green, blue, light blue, purple, black, gray, white and brown. Modeling clay encourages children to create in a way no other art medium allows.