Thermus or water bottle with airtight lid, made of stainless steel and with a capacity of 0.5 l (500 ml), are products used to maintain and transport water, other drinks or various liquids. These products are usually used to maintain freshness and facilitate the keeping of hot or cold drinks.
In addition to daily use, these products are often used for travel, sports activities, or to reduce the use of unused holders. For more detailed information on certain products, I recommend searching you on the store's website where you plan to buy or on the manufacturer's official website.