Material: Made from food grade silicone; stronger, more flexible and durable to maintain its original shape and non-stick quality through more uses. Easy to release: Non-stick surface and flexible, just pop out with pressed fingers, easy to release and clean, these silicone baking molds is impermeable, practicality and durability. WIDE HEAT RESISTANT RANGE: -104H to 446H(-40 to 230); tasteless, safe for oven, microwave, dishwasher, fridge, freezer. Just feel free to enjoy much healthier treats with your family and friends. Applications: For coaster casting, hamburger, Cake Decorating , Fondant, Soap, Chocolate, Gelatin, Jelly, Muffin, Fondant, Sugarpaste, Wax, Ice, soap, Resin, and All types of Moulding Clays.