This 20oz stainless - steel tumbler, designed by Dunbi, is a perfect companion for your on - the - go life. It keeps your drinks at the ideal temperature for hours. The included straw adds extra convenience. Made from 100% stainless steel, it's durable, rust - resistant, stain - free, and corrosion - proof. With a size of 9*7*17CM, it's easy to carry. The plastic lid effectively prevents liquid spills, ensuring a mess - free experience.

Using this tumbler is a breeze. Just open the plastic lid, fill it with your favorite drink, put the lid back on, and you're ready to go. If you want to use the straw, simply insert it through the designated hole in the lid. When it comes to cleaning, use mild dish soap and warm water. Avoid using abrasive cleaners as they may scratch the surface. After cleaning, dry it thoroughly to prevent rust. Store it in a cool, dry place when not in use. And don't forget, it's designed to be durable, but still handle it with care to keep it in top condition for a long time.