Check the listing for details. Oven Liner 23' X 16.25'. Condition: New. Listed at 48.19 USD. Measures: 23' x 16.25'/ 58.5cm x 41cm .5mm thick. Catch spills! Reusable. Easy to cut liner fits most standard size ovens, toaster ovens and microwaves. Non-stick surface wipes clean with ease. Works with gas or electric ovens. LFGB silicone has no PFAs and is heat resistant to 500�F/260�C. INSTRUCTIONS: Wash and dry before use. Trim liner to fit the bottom of your oven. Electric oven with visible heating element: Place liner on bottom of oven under heating element. Electric oven without visible heating element: Place liner on the bottom rack. Gas Oven: Place liner on the bottom rack. Do not block holes or vents inside the oven. Do not use directly on heating element or over open flame. Clean with soft cloth/sponge and soapy water(Do not use detergents or abrasive cleaning tools).