The universal Argento vacuum thermos is made of high-quality 304 grade high-alloy steel, does not change the composition, smell or taste of drinks, and also guarantees that the drink will remain hot or cold for several hours. The thermos is comfortable, ergonomic. Thanks to the optimal volume, it is ideal for going to a workout or to school, a trip to the country or to work.A fully sealed lid with a silicone insert allows you to put a thermos in a backpack or bag, in addition, it can be used as a mug. The swirling stopper is made of plastic, does not contain Bisphenol-A (BPA). The metal coating prolongs the service life of the thermos.The plug with the button is disassembled by unscrewing the middle part of the plug, so that it is convenient to wash it. To avoid leaks and accidents, make sure that the stopper is assembled and tightly screwed before using the thermos.A 500 ml vacuum thermos will keep you warm for 12 hours or cold for 24.Recommendations for use:• Before first use, thoroughly wash the product with hot water and detergent, rinse well and wipe dry to avoid water stains on the surface.• Tighten the valve cover tightly after disassembly to avoid leakage.• It is recommended to wash the thermos by hand. Never use hard objects, metal washcloths, abrasive detergents for cleaning.Dimensions without packaging: 69x69x240 mm Dimensions with packaging: 75x75x255 mm Weight without packaging: 328 g