Focus Foodservice Commercial Bakeware Bottom for 7-Inch Aluminum Spring Form Pan Heavy duty commercial bakeware; bottom for 7 inch spring form pan #900407 Constructed with a tough corrosion resistant 3003 h14 aluminum alloy; superior strength, even heat distribution 7-inch diameter removable bottom; .8 mm thick Made to fit Focus Foodservice 7-inch spring form pan # 900407 Hand wash with hot water, mild soap and dry immediately