Introducing our factory-made {500ml 316/304/201 Stainless Steel vacuum flask}, an exceptional product designed to keep your beverages hot or cold for extended periods. Crafted from high-quality stainless steel, the flask ensures durability and resistance to corrosion, making it perfect for everyday use. With a 500ml capacity, it offers ample space for your favorite drinks. The vacuum insulation technology guarantees optimal temperature retention, allowing you to enjoy your drinks at the desired temperature throughout the day. Our factory takes pride in delivering top-notch products that meet stringent quality standards.