Siensync Silicone Baking Mat - 3 Set of 11.5 x16.4 Inch Half Sheet Calories Reduce Cookie Mat, Non-Stick Heat Resistant Cooking Mat for Oven / Microwave / Dishwasher / Freezer HEALTHY OPTION: Siensync Baking Mat are completely green and environmental friendly, it has No smell, No extra taste, No residue on food. You never worry about a chemical residue from them. MULTIPURPOSE: This Baking Mat is available for oven, microwave, dishwasher, freezer. It can resist bitter cold and intense heat, ranging from -40 degrees Fahrenheit to up to 480 degrees Fahrenheit. Since the silicone can withstand hot and cold temperatures, it is microwave, freezer and dish washed safe. MATERIAL: The baking mates are made of a durable non-toxic material. They work in all temperatures, having a range of -40 degrees Fahrenheit up to 480 degrees Fahrenheit. EASY TO CLEAN: The mats are virtually non-stick and themselves wash off very easily and dry quickly. if the baking mats get greasy, simply rinse them in warm/boiling water with some dish detergent or baking soda. The oil films will be gone. If the baking mats get an odor you can remove smells by soaking the mats in vinegar and allowing them to air dry. 100% SATISFACTION GUARANTEE: If our mats don't meet your expectations, just feel free to let us know, we will try our best to make you satisfied with our service.