The Old Dutch 14 oz. Straight Sided Moscow Mule Mugs – Set of 4 is a must for any bar. These vintage style mugs are crafted from solid copper with brass handles and a protective lacquer coating that resists tarnishing for a long-lasting luster. All four smooth-sided mugs are unlined and possess a 14 ounce capacity ideal for beer, eggnog, and, of course, a delicious cocktail like the Moscow Mule. To make a Moscow Mule, just blend your favorite ginger beer and Russian vodka, then add a splash of lime juice for an added kick.