Creative Hobbies® Ceramic Mold Rubber Bands are a natural, heavy duty formulation and are ideally suited for ceramic and pottery use to hold plaster molds together. Our natural rubber bands are also great for a wide variety of home and hardware uses such as for woodworking projects to hold parts together for gluing. Approx. 7/8 inch wide x over 1/16 inch thick. Assorted size bag contains sizes 3 inch to 9 inch. Imported.