Lekue Silicone Mirage La Bomba Mold Collapsible 9-Inch Double Boiler Made of 100% high-performance, food safe platinum silicone Great for use as a double boiler or tempering chocolate Collapses for easy storage Flexible, non-stick and durable Oven, microwave, freezer and dishwasher safe (-76 degrees Farenheit - 500 degrees Farenheit)