Made of double layer pure titanium for enhanced durability and insulation performance. Keeps beverages hot or cold for 12-24 hours with double-wall vacuum insulation. design makes it easy to carry, perfect for on-the-go use. to acid, , and , ensuring long-lasting use. high-temperature crystallization process provides a beautiful texture and minimizes fingerprints. Name: pure titanium cup/water bottle Material: double layer pure titanium Capacity: 420ML Functions: conventional, household, portable, vacuum, thermal insulation, anti-fall Color: / Rouge Red/ Green/ Starry Gray The chemical properties of titanium are extremely stable, to acid, , and . Titanium does not undergo chemical reactions with any food, and can largely maintain the original flavor of food and beverages. The "biophilicity" of titanium material has no effect on human autonomic nervous system and taste, and there is no heavy metal precipitation. Titanium has a low density, and titanium cups of the same size are lighter than stainless steel cups, making them easy to use and carry. Package Contents: 1x cup Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.