Our product is medical grade stainless steel reusable shell in the form of an oyster shell. They are sold in packages of 12. The shells can be used for cooking and/or preparing any type of food or cold dessert on the grill, oven or in the refrigerator. Think about chargrilled oysters, shrimp, chicken, veggies, etc. The shells are 100% manufactured and distributed from Covington, Louisiana. The shells are an upgrade of the shell cooking technique brought to Louisiana by the Acadians (Cajuns) in the 1700's.