CareU(TM) Non-stick Silicone Baking Mat, Professional Grade Baking Cookie Sheet (2packs) HEALTHY TO USE - Made from high quality fiberglass and silicone. It helps to distribute heat evenly along the entire baking surface therefore you always get perfect consistent results every time you bake FOOD SAFE & CONVENIENT - Made of premium quality non-toxic materials. No oil or fat is required for baking which reduces intake of cholesterol, saturated fat & cancerogenic substances produced by cooking oils subjected to high temperatures HEAT RESISTANT AND DURABLE - Oven, microwave, dishwahser and freezer safe. It's flexible yet tear resistant, and designed to withstand thousands of uses under extreme conditions of bitter cold and intense heat (from -40F to up to 446F) NON-STICK & EASY-TO-CLEAN: No more scrubbing! Even burnt sugar and fat falls off on its on. Just rinse the mat in warm soapy water to clean it. You can also wash it in your dishwasher. Repeated multiple uses and washing cycles do not affect non-stick properties of the mat. After every use and cleanup, it will be just like new again BEST WARRANTY AND GURANTEE - Your Satisfaction is our TOP Priority.If you are not satisfied for any reason,please return for a 100% refund. Please don't hesitate to contact our customer service if there is any other problem