STREET CRAFT Pure Solid Moscow Mule Copper Mugs Cup Capacity 18 Ounce Free One Copper Shot Glasses Size 2 Ounce Mug Size: Dia - 3.3 inches, Depth - 3.8 inches,Capacity 18 oz,Shot Glass Size:- Height - 2.5 inches,Dia - 2 inches. Moscow Mules enhance the individual flavors of the ginger beer, vodka, and lime. Some experts say that when vodka touches the walls of the mug, the copper begins to oxidize, slightly boosting the aroma, and enhancing the taste of the vodka. Cold copper also has a tendency to increase the amount of bubbles in the carbonated ginger beer, bringing maximum fizziness to the Moscow Mule, when compared to being served in a plastic or glass container. Our copper mug will frost up in mere seconds. The pure copper transmits an icy cold experience directly to your lips, and the metal locks in the drink's coolness. The included copper shot glass makes measuring drinks a breeze, and the mug serves up a refreshing experience for any type of cocktail! 100% Pure Hammered Copper Vodka Mug. Made in India