Our pair of Moscow Mule Mug cups offer more capacity than all other cups. With 16 oz ounce capacities each, you can enjoy your drink even longer. On top of that each and every piece is meticulously handcrafted one at a time with extra polishing to make them shine with silky smooth edges. We use 100% copper offering the best taste experience with every sip. The copper keeps your beverage ice cold and frosty. When the copper begins to oxidize, it boosts the aroma and enhances the taste of the ingredients. It also increases the bubbles in the carbonated ginger beer, bringing maximum fizz to the Moscow Mule. The citric acid from the lime juice is brought to life by the extra-cold copper, heightening the tangy citrus flavor and reducing the acidity which perfectly complements the spiciness of the ginger beer. The dimensions for the Solid Straight Pair of 100% Copper Moscow Mule Mug Cups with Two Copper Straws 16 oz Ounce Hammered Handcrafted Finish are: 5" L x 3.5" W x 4" H