①. Premium Materials: The thick chocolate bars are made of silicone. It is food-grade and BPA-free. They can directly contact food. ②. Extra Deep and Extra Large: The size of the deep chocolate bar mold is 25*14 cm. It is deeper, larger and fuller than regular chocolate. ③. EASY TO USE AND CLEAN: Our chocolate bar molds are easy to fill, remove and clean. After use, just rinse with water to quickly remove stains, and it is also dishwasher safe. Even more fun: Use our extra deep chocolate bars. You can make more fillings at once - not only pistachios, but also jam, peanut butter and more. Enjoy every unique chocolate moment! ④. Heat-resistant: Temperature resistant from -40 to +446 degrees Fahrenheit (-40 to +230 degrees Celsius). It is oven, freezer and microwave compatible.