The CHINA PURSE WATER BOTTLE YW-2030B is an innovative and practical product. It is made of high-quality stainless steel, making it resistant to wear and tear and ensuring it's built to last. It also features a double vacuum insulation, keeping hot liquids hot for up to 12 hours and cold liquids cold for up to 24 hours. It also includes a leak-proof design to help keep your drink inside the bottle.