Silikomart Silicone Mould Bubble Crown Ø18x6cm Wow! Would you also like to make such a stylish cake with bubbles? With this set (consisting of three silicone moulds), you can make a unique cake or pie that will really surprise someone! Silikomart's silicone moulds are super flexible and suitable for the oven, fridge and freezer. This is because they can withstand temperatures between -60°C and + 230°C. In addition, they have a non-stick coating so you don't need to use butter, fat or oil. Silikomart's silicone moulds are all dishwasher safe.