Modern Home Moscow Mule straws are constructed of 100% pure copper that are each handmade in India. There is no stainless steel or nickel lining which can change the taste of your beverage. We apply a food-safe lacquer that resists tarnishing for lasting beauty and luster. The straw of choice when serving the infamous Moscow Mule--a cocktail made from a blend of vodka, ginger beer, bitters and lime juice. Care Instructions: After each use, clean with warm water and mild soap. No hard chemicals or detergents. Not dishwasher safe. Not to be used in microwave. Do not use with hot beverages. Set of 2. Mugs not included.