Using this cup is super easy. Just open the lid and pour in your favorite drink. It can keep your drinks hot or cold for a long time, so you can enjoy them at the right temperature. When it comes to cleaning, use warm soapy water and a soft sponge to clean the inside and outside of the cup. Don't use abrasive cleaners as they might scratch the surface. Also, make sure the cup is completely dry before closing the lid to prevent mold. Store it in a cool, dry place when not in use.