DABWARE XL 17"X12" SILICONE MAT CAN SERVE MULTIPLE FUNCTIONS AND ARE SAFE FOR USE IN FREEZERS, MICROWAVES, CONVENTIONAL AND TOASTER OVENS. YOU CAN SKIP THE COOKING SPRAY, PAN GREASING, AND PARCHMENT PAPER. FEATURES NON-STICK SILICONE MAT HEAT RESISTANT XL 17"X12" SILICONE MAT