Can be safely used in the oven, microwave,refrigerator. The silicone mold is made of flexible silicone material, flexible, durable, long-lasting and non-stick, easy to out and clean. This 3d cake mold is a great choice for Valentine's day or wedding favors, It is also perfect for any parties and daily life. Temperature range: -40--230 centigrade,baking,freezing still remain soft and not deformation. These dessert molds silicone are very suitable for making mousse, jelly, chocolate, cheese cake, cake decoration, muffin, fondant, sugarpaste, candle, wax, Ice, soap, resin, stick and all of clays, multi-application meet your needs.