- Made from food grade natural silicone. - Safe and can stand temperature from -20 - 250 Degree celcius. - Freezable, microwavable and can be use with sterilizer. - Multi usage! Can be used to store baby food, ingredients & homemade soft ice cream. - The silicone lid is transparent so your food will be visible through the lid. - Each tray can store up to 16 ounces of food (4 ounces for each cube). - The food, once frozen, can be easily retrieved because the silicone tray is very flexible.