Introducing the La gourmet Ritz Thermal Bottle. This top of the line stainless steel vacuum flask is made from unbreakable 304/18/8 stainless steel and is available in double walled vacuum pumped stainless steel. It is a vacuum flask of superior quality finishing and performance. It has a one stop stopper, which makes it easy to use. It could keep hot or cold up to 24 hours for thermal flask and 6 hours for food carrier and tumbler.