This tumbler is super easy to use. Just fill it up with your favorite drink, whether it's a hot coffee or a cold juice. Remember, it's made of plastic, so you should only wash it by hand. Using a microwave with it can damage the tumbler. After each use, give it a gentle hand - wash with mild soap and warm water. This will keep your tumbler looking great and ready for your next drink. It makes a wonderful gift for those who love nature and the Gothic style.