Regency Spillmat Oven Liner 16 x 23 Inch Heavy Weight Catches drips to eliminate stuck on mess in your oven. Extra heavy weight non stick sheet fits most standard electric ovens, but can be cut to fit toaster oven or microwave Good in temperatures up to 500 degrees. Suggested placement on lowest level of bottom rack. Do Cover Vents, and Do not place directly on element or on floor of oven when element is underneath. Easy to clean. Do NOT EXPOSE TO SELF CLEANING CYCLE.