Crayola Model Magic adds a new dimension to crafting creative art projects. Model Magic is a soft, easy-to-use modeling material that lets you and your kids create colorful, keepable art. Plus, it’s great to have on hand for slime supplies! Model Magic air-dries, usually within 24 hours. Pick up any of these 4-ounce packs in 10 assorted colors and make cool creations! Want to have some gooey fun? Check out our slime recipe that uses Model Magic.