silicone molds are made of 100% Food Grade silicone, BPA free, Non-toxic, heat-resistant can withstand temperatures ranging from -40F to +446F (-40 to +230), it's safe for the oven, microwave oven, freezer, refrigerator & dishwasher. These flexible and durable semicircle silicone molds can be easily Released, after cooling , they JUST POP OUT with pressed finger. The reusable silicone mold has a non-stick surface, and the chocolate can be easily removed from the mold completely without worrying about cracking or the recipe sticking to it. Flexible and durable Semi-circular silicone molds are easy to fill, Just fill your favorite recipe into the mold, and wait untill they are cooled completely, then turn it upside down, pop right out with a little push from the bottom, it is very easy to use and time saving. Besides these durable silicone molds are not easily deformed or torn. Our food-grade silicone molds can be used for making cakes such as mousse, chocolate bombe, raindrop cake, ice cream cake, chiffon cake, muffin & dessert for example gumdrop, yogurt drop, gelatin drop, jelly, pudding, Bread, prepared food, even handmade soap, wax, resin dome and bath bomb.