Material:SiliconeDescription:For Most drinks - This big head melt slowly and keep your drink cool, best for cocktails and whisky.It can also use for iced tea, coffee, soda drink, fresh juice, fruit punch and even iced waterIt is great for halloween christmas, summer pool parties, restuarants and bars It is non toxic, BPA Free. Safe to use in refrigerator, dishwasherBefore Use:You are recommended to wash it before use, or some suggest to put it into oven for 3-5 minute if there is strong silicone smell.Step.1 Close the tray and try to lock the