Demarle Silpat Baking Mats are the very best surface for baking cookies, when working with sticky materials such as batter, taffy or caramel, and it doesn't need to be greased. Silpat is a must for any patisserie chef or home baker. Reusable, durable, and easy to care for; food grade silicone impregnated fiberglass Silpat baking mats make any baking sheet nonstick. Baked items brown and are less likely to burn. The angled corners smoothly fit inside a jellyroll pan or sheet pan. Silpat never needs greasing. Use Silpat for any baking recipe that calls for parchment paper. Silpat silicone baking mats conform to US regulations on food grade silicone, and is FDA, NSF, and Kosher certified. Can be used at temperatures varying from -40 F to 482 F. Reusable thousands of times. Oven, microwave and freezer safe. Not for use under broiler or in toaster ovens. Should not come into contact with oven walls. Cutting on Silpat with a metal knife or sharp utensil will void the 2-year warranty. Made in France. Dimensions: 11-5/8-Inch x 16-1/2-Inch (half-sheet pan)