Made from polypropylene, which contains no ; easy to use and store; measures 4-inches diameter; 9-inches fully open, handle to handle Make uniform dumplings, empanadas, kreplachs, pasties, perogies, piroshki, potstickers, samosas, raviolis, turnovers, and more Place 4-inch round dough on the open , add 1-rounded teaspoon filling, moisten edges with water, squeeze handles together to seal Kitchen Dumpling easily makes authentic homemade Asian dumplings and other pocket foods as hours d'oeuvres, desserts, and snacks Uniform dumplings cook evenly for better tasting results; dishwasher safe for easy cleanup