Dungri India Set of 4 ,Moscow Mule Solid Copper Mug 550 ML / 18 oz - 100% Pure Copper Barel Mug Best Quality Lacquered Finish Before Placing Order Make Sure You Are Buying From Dungri INDIA For Our Quality Guarantee. If You Buy From Others Then We Are Not Responsible For Low Quality Order with confidence - We offer a 100% Satisfaction and Moneyback Guarantee!Enjoy Your Shopping By DUNGRI MuGs Size: Dia 3.1 inches, Depth 4 inches,Weight 195 grams per pcs , Capacity 18 oz per mug Remember Copper Moscow Mule Mugs Are NOT For Microwave Use and are NOT dishwasher safe 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.