Pyrex Corning Ware P 11 M Metal Trivet for Casserole Dish 10" X 6.75" Corning Ware P-11-M Casserole Skillet Chrome Trivet Designed for use with the old Corning Pyroceram P-1-B, P-1 1/2-B, and P-1 3/4-B square skillet / baking dish