Kids can mold, shape and twist the Model Magic any way they like. There are no rules and no limits to what they can create with the versatile modeling material. Model Magic is non-toxic, easy to use, doesn't crumble and can be cleaned up in a snap. What more could kids and parents ask for? Kids can air-dry their creations or re-use Model Magic another time. Each pack includes 4 oz. of Model Magic modeling material.