Moscow mule mugs is Traditional handcrafted Moscow mule mug design, enhances the flavor of the drink and stay colder. Non-rusting food grade material with copper plating and stainless steel inner, does not contain any toxicity, safe and durable. It is easy to clean, hand wash or dishwasher are available. Ideal for cocktail, beer, vodka, gin, rum, tequila, whiskey, wine, cold water, iced tea, etc.