Introducing our high-quality 500ml 316/304/201 Stainless Steel vacuum flask! Crafted in our state-of-the-art factory, it guarantees excellent durability and insulation. This sleekly designed flask keeps your beverages hot or cold for extended periods. The stainless steel construction ensures resistance to corrosion and maintains the taste and freshness of your drink. With a capacity of 500ml, it's perfect for on-the-go hydration. Trust in our factory's expertise and enjoy the convenience and reliability of our stainless steel vacuum flask.