Made of high quality 304stainless steel, our 400ML stainless steel mug is durable and long-lasting. This stainless steel mug comes in a variety of colors and designs. Whether you're using it for your coffee or hot chocolate, it can keep your beverage warm for hours. For the kids or grown ups, our stainless steel mug is a perfect companion to your favorite beverage! Our 400ML stainless steel mug is made of high quality 304stainless steel. Not only for kids to use around the house or camping, picnicking and traveling. Would also be a lovely creamer/espresso mug for grown ups, perfect for a few shots or a small cup of coffee.