Baker's 13 Non-Stick Silicone Stripes Baking Mat, 11 by 15-Inch, Dark and Light Blue Fits US Half Size baking pans, 12" x 16" baking pans and most cookie sheets. For use in the oven, microwave and freezer. Dishwasher Safe: Baker's 13 silicone mats have no fiberglass fillers so they will never fray at the edges (unlike fiberglass baking mats) Bakers 13 baking mats are not just for baking: You can use them for roasting vegetables, meats, making candy, or even frying bacon in the oven Baker's 13 baking mats have a lifetime warranty.Baker's 13 won't wrinkle, tear, fade or deform after hundreds of uses Baker's 13 mats are safe to use: 100% food grade silicone passing FDA standards - BPA and PFOA Free. Recommended max temp 400-425 F