About Silicone:Heat-resistant temperature of -40 Degrees Celsius to +230 Degrees Celsius, can be re-used, innovative design, soft, varied styles, stripping easy, and easy to clean. Advantages:Silicone is extremely stable properties, UV, ozone, extreme temperatures, and the vast majority of chemical agents can not change its character. it can be applied to microwave heating, oven baked, non-direct contact with flame cooking, cold storage and freezing.