High-Quality Materials: Made of 100% food grade silicone. Suitable for making chocolate, waffle, candy, cake, ice cube, energy protein bar, cacao bar, gummy. It can also be used to make crafts. Temperature to Use: It can be safely used in ovens, microwaves, dishwashers and refrigerators, Temperature safe from -40 to 230 degrees Celsius(-104 to 446 degrees Fahrenheit). Not suitable for baking on the fire directly. Flexible and Non-Stick: This silicone mold is flexible, not easy to crack or break, and you can pop out easily for smooth surface without any residue.