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. Lightweight design makes it easy to carry, perfect for on-the-go use. Resistant to acid, alkali, and corrosion, ensuring long-lasting use. Unique biophilic properties of titanium maintain the original flavor of beverages without heavy metal precipitation. (1) Name: pure titanium thermos cup/water bottle (2) Material: double layer pure titanium (3) Capacity: 420ML (4) Insulation performance: 6-12 hours (5) Functions: conventional, household, portable, vacuum, thermal insulation, anti-fall (9) Color: Sky Blue/ Rouge Red/ peacock Green/ Starry Gray The surface of the cup is made of high-temperature crystallization process, which has texture, is more beautiful, and is not easy to leave fingerprints. 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. Color: Blue Material: Metal 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.