FoodSaver T03-0021-01 2-Pack Universal Lids 2 universal lids for use with FoodSaver vacuum-packaging machine Keeps food fresh 3 to 5 times longer than other storage methods Lids fit over the top of glass jars or metal cans Food can be left in its original store-bought packaging Measures 4 by 4 inches and 5-1/2 by 5-1/2 inches