SOZO Safe 3 Oven Liner Non Stick Teflon Fits up to 30" Oven Toaster Grill, 16.25" L x 23" W Flexibility - multipurpose oven mats: Use Teflon oven liners at the bottom rack of the oven to protect it from spills and grease Clean - protects bottom of the oven: Never scrape or clean the bottom of your oven for removing grease, spills and dirt Reusable - can be used over and over again and lasts for years, food spills and drips may cause staining however it does not affects its efficacy Oven liner and baking mat - the oven liner keeps your oven clean but also works great to cook on and keep the bottom of food from burning