Bake without greasing pans with butter, oil or spray. Made with food-grade silicone and reinforced fiberglass mesh, the two mats and two muffin molds in the set cook evenly and release baked foods without effort. To use, place a mat or muffin mold on a baking pan or cookie sheet, top or fill with dough, batter or frozen foods, and bake. Oven-safe to 500°F, the cookware cleans up easily in the dishwasher.