Hammered Copper Mule Mug Set features a solid copper body that helps to keep your drinks colder for longer, while the contoured brass handle makes these mugs easy to hold. This mug set is perfect for enjoying any cold beverage from water and iced tea to cocktails and beer. The cold metal insulates the temperature of the chilled ginger beer, keeping the cocktail cool and refreshing. Hammered Copper Mule Mug Set keeps all your favourite drinks cold and refreshing. This set is used for moscow mules, beer mugs, copper infused water, iced coffee, iced tea.