The interfolded foil sheets are made of aluminum, can be pulled out one at a time from an opening on top of the carton, and can be used to wrap foods. Aluminum foil helps hold in heat, can serve as a moisture and oxygen barrier for freshness, and can be recycled. Aluminum foil sheets, unlike foil on a roll, come precut. The foil sheets are interfolded, so that when one sheet is pulled from the top of the carton, another appears. Great in the oven for cooking or reheating. Convenient way to separate food from cardboard and other packaging material. Material(s): Aluminum; Length: 10.75" Width: 9" Packing Type: Foil Sheets.