PREMIUM MATERIAL: Made from durable heat-resistant fiberglass and food grade silicone, non-toxic and FDA approved, gives no added taste or smell to your food, safe for use.
FREEZER, MICROWAVE & OVEN SAFE: It's designed to withstands temperatures of uses under extreme conditions of bitter cold and intense heat from -40 degree to 480 degree F (-40 degree to 249 degree C)
HEAT EVENLY& NON-STICK: Made of high quality silicone helps to distribute heat evenly along the entire baking sheet surface therefore you always get perfect cookies every time you bake,no more burned and under-baked spots.