*For 13" x 18" baking sheets* Mrs. Anderson's baking mats will turn any baking pan into a non-stick surface! They are especially great for working with sticky materials such as gooey dough, taffy, or caramel. Its nonstick properties will save you a lot of time cleaning as there in no more sticky mess on your pans! They never needs greasing, which saves both time and money. Use with any baking recipe that calls for parchment paper. This saves money and creates less waste for our environment. They are made of fiberglass and silicone, and can be used thousands of times. Life of product varies depending on use and maintenance. Mrs. Anderson's products conform to US regulations on food grade silicone, and are FDA, NSF, and Kosher certified. Can be used at temperatures varying from -40F to 482F. Made in France, distributed by Harold Import Company.