Mrs. Anderson's Ceramic Pie Weights bake empty pie shells, known as blind baking, without them shrinking, bubbling, or buckling. Made from natural, food-safe ceramic stoneware; heat resistant to 480-degrees Fahrenheit. The package includes a convenient storage container. Individual beads are easy to place and arrange as needed; effectively weighs down pie dough to keep bubbles from forming and transfers heat evenly. Great for any size frozen and homemade pie crust. Wipe clean with a dry cloth or hand wash in warm, soapy water; dry thoroughly before storing.