Heavy duty sheet to catch spills in convection, electric, gas, toaster & microwave ovens. For a cleaner oven: catches all spills, drops, and drips from pies, casseroles, pizza, etc. Before they burn, smoke and bake in the hot oven bottom for a cleaner oven; BPA and PFOA-free. Easy cleaning: safe, non-stick PTFE is durable and cleans up easily; dishwasher safe works in all ovens: convection, electric, gas, microwave. Made in the USA. Saves you time and energy: no more scrubbing or scouring your oven! Versatile, quality material: 16.5” x 23”, heavy-duty professional grade but can be cut to size easily with household scissors; easily tolerates temperatures up to 500 degrees; can be used as an oven or pan liner, baking/cooking sheet or mat.