SAFETY CERTIFICATION - It is made of silicone which is compliant with FDA or LFGB certification. It is naturally harmless, non-toxic with no smells, non-corrosive, and can be recycled. GREAT PERFORMANCE IN HIGH AND LOW TEMPERATURE RESISTANCE - It stands -40 to 230 degrees Celsius and is applicable to refrigerator and microwave. It is mainly used in bars, restaurants or households to produce spherical ice cubes. The ice cubes can be directly put into whisky, fruit juice, and beer to chill the drinks instantly. BIG CAPACITY OF MORE THAN 160 ICE