Silicone Baking Mat, Non-stick - 16 1/2 X 11 Inches - US Half sheet size is best for rolling dough or pastries & cooking pizza, cookies, artisan breads, pretzels and more! Non stick pink liner is made of FDA approved silicone with a fiberglass core for strength. Use thousands of times. Fits standard 13 x 18 US half sheet size pans. Safe for use in the freezer to -40 or ovens to 460 degrees. Distributes heat evenly across entire baking surface. Silicone bakeware cleans easily with warm, soapy water. Unique design makes this the perfect housewarming or hostess gift