Temperature: -40F to +446F (-40c to +230c)Flexible and non-stick: baked goods pop out easily;High quality construction; long lasting performance; meets European and FDA standards for silicone bakeware,completely safe to be used in freezer, oven & microwave. Our silicone baking cups / cupcake liners are designed to withstand thousands times' usage, totally a money saver!;Made of high quality food grade silicone Microwave and freezer safe;EASY TO CLEAN - Non-stick, spotless & odor resistant feature ensures the silicone baking cups / molds very easy to clean. Simply rinse them in warm soapy water or place in dishwasher after use!;PERFECT SIZE:The 4pcs baking mold size is :10-inch by 6.7-inch by1.0-inch deep;10.2-inch by 7-inch by1.3-inch deep; 10.6-inch by 6.6-inch by1.0-inch deep;10.6-inch by 6.6-inch by1.0-inch deep.