Using these mugs is easy. Just pour your favorite hot or cold beverage into them. They're great for coffee, tea, or even a cold drink. When it comes to cleaning, you can wash them by hand using mild dish soap and warm water. Avoid using abrasive sponges as they might scratch the hand - painted metallic surface. Store them in a safe place, away from sharp objects, to prevent chipping. If you need to return them, you have 30 days from the purchase date to do so under our return policy.