Safe and Durable: This stone-shaped ice cube mold is made of food-grade silicone, which is safe and flexible, durable and reusable. It can withstand temperatures from -40C to 230C and is microwave, refrigerator and dishwasher safe. Easy to Use: Compared to traditional hard ice cube molds, our silicone ice trays are very easy to de-ice. Just push the bottom of the mold and the ice cubes can be easily removed. Slower Melting: Irregular ice cubes will make your drinks look cool! Super slow-melting ice cubes won't dilute your drink and preserve the flavor and intensity of your favorite whiskies, cocktails, iced coffee and more. Versatile: You can customize your favorite flavors by placing ice cream, soda and wine in the silicone ice cube tray. It can also be used as a mold for mousse, candy, chocolate, pudding, jelly and more. It is perfect for a variety of occasions such as parties, beaches, wine parties and holiday event decorations. Satisfaction Guaranteed: Your satisfaction is our top priority. If this product doesn't live up to your expectations, please feel free to contact us.