Using your tumbler is easy! Just open the magnetic lid, pour in your favorite drink, and close the lid. It'll keep your drink at the right temperature for 3 - 4 hours. When it comes to cleaning, hand - wash it with mild soap and warm water. Avoid using abrasive cleaners as they might damage the color coating. Don't put it in the dishwasher or microwave. Store it in a dry place when not in use to keep it in good condition.