SAFE MATERIAL These semi sphere moulds are made of food grade silicone, which is extremely flexible and can be squeezed into various shapes but will return to its original shape. They are BPA free and have no unpleasant odour. They are durable whichwill not break easily.WHAT YOU GET You will get 6 packs of individual 5 cavity moulds. The overall dimensions of the moulds are 293 x 170 x 37mm (LxWxH). Each cavity is 3.1 inches (8 cm) in diameter. The moulds are heat resistant and impermeable. It can withstand a temperaturerange of 106to 666 ( 60 230).EASY TO RELEASE Half sphere silicone moulds are pretty thin, but they work very well for hot chocolate shells. The chocolate will pop right out, but be sure to paint on multiple coats of chocolate, otherwise theyll break when you take them out.WIDE APPLICATIONS The semi sphere cake mould is safe for use in the oven, dishwasher, freezer and microwave. Use it to make chocolate shells filled with peanut butter ice cream and caramel sauce to pour over for Christmas. The mould is perfect for somany other things.