No need for use of oils, cooking sprays, parchment paper, or foil * Made of slippery silicone; Reusable and extremely easy to clean * Safe to go from freezer to oven to microwave and withstand extreme temperatures * Made from fiberglass coated with 100% FDA grade silicone for even browning and cooking * Includes CM/IN ruler around perimeter for ease of use; Every order comes with Epare"s Cookbook