CleanZone Oven Liner 24 Inch x 16.9 Inch. Heavy Weight + 5 Year Guarantee 100% nonstick PTFE Teflon Oven Liner. Fits all standard ovens or trim for a custom fit. Clean up with ease, just wipe off spills + Dishwasher safe Can be placed on the oven base or rack. Working temperature: 500F