Using this tumbler is super easy. Just open the lid and pour in your favorite drink, whether it's hot coffee or cold lemonade. It's great for taking with you on the go, like to school, work, or out with friends. When filling with hot water, be a bit careful as the steam can lift the lid. Don't worry if that happens, it's completely normal. To keep your tumbler in top shape, wash it regularly with mild dish soap and warm water. Avoid using abrasive cleaners that could scratch the surface. And that's it! Enjoy your drinks in style with this trendy tumbler.