Mary's Softdough is a non-crumbly modeling dough that's fun to play with! It holds up well to lots of creative play, and when stored in it's container, will last up to a year. Mary's softdough is available in our classic solid colors and Rainbow tub versions. Ingredients: flour, water, salt, cream of tartar, soybean oil, food coloring and sodium benzoate (a food preservative). Recommended for kids 3 and up. Conforms to ASTM D4236-94. Manufactured by Terrapin Toys LLC in Eugene, Oregon USA.