400ml straight insulated thermos flask, made of high quality food grade stainless steel material, without mental aftertaste, safe and corrosion resistant. 300ml/400ml makes it suitable for both children and adults. Eco-friendly material painted, with smooth touch and elegant appearance. Rotating lid and double wall vacuum design can firmly keep the water warm or cold more than 12 hours. There is a vacuum layer between its double wall, which can perfectly prevent the heat from moving by convection. Different from using heating element to make beverages hot, the flask can keep beverages hot or cold by not allowing heat or cool air to eacape. Absolutely environmentally friendly and healthy, while you can also enjoy the original taste of beverages.

Product details

 Usage: office, household, school etc.

Note:

Please allow 3-5mm errors due to manual measurance

Item color in reality may be showing slight different from the picture as the light and computer monitors are not always same.

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