This 3D Harry Potter Hedwig glass is super easy to use. Just pour your favorite hot or cold beverage into it and enjoy. Remember, it's double - walled, so it can handle different temperatures well. When it comes to cleaning, always hand wash it. Avoid using abrasive sponges or harsh chemicals as they might damage the beautiful 3D Hedwig image. Keep it in a safe place, away from sharp objects and direct sunlight to maintain its appearance for a long time.