L No. Titanium is a kind of biophilic metal, can withstand most kinds of acid and alkali corrosion, prolong the freshness time. Titanium mesh is a good option for those who are camping. Features: The edges of the cup are curled and therefore safer to use. Its handle and large mouth make it very convenient to distribute food in the pot, which is very convenient to use. You can use it for camping, traveling, picnics, hiking, or family activities. This mug can be cooked directly on stoves. Fully biocompatibility, the chemicals are leach-free, allergy-free. No corrosion or rust, no taste, peace of mind. Eco-friendly and magnetic free healthy materials. Specifications:Material: Titanium Capacity: 500mlProduct Size: 105*70mm/4.1*2.8inProduct Weight: 45g/1.6ouncePackage Size: 110*100*80mm/4.3*4.3*3.9in Package Weight: 54g/1.9ouncePacking List:1*Water Cup Z This cup is made of titanium, super light and strong. With a capacity of 500ml, this mug is great for camping, hiking, backpacking, and home use. Features: The titanium cup is super lightweight, strong and corrosion-resistant. Capacity: 500ml. Dimension: Approx. 4.1" x 2.8" (D*H). The titanium material leaves no metallic smell or taste. Round bottom edges for easy cleaning and efficient heating. Comes with a drawstring mesh bag for convenient carrying. Specifications:Material: Titanium Capacity: 500ml Dimension: 105*70mm / 4.1*2, 8