Product features measures 4" high x 3.5" wide excluding the handle food-safe lacquer resists tarnishing not microwave or dishwasher safe seamless hygienic interior guaranteed quality we guarantee our quality and if the mug comes with any damage we will replace it care instructions for a long lasting moscow mule mug after each use clean with warm water and soft soap. No hard chemicals or detergents. Dry the copper mug with soft cloth. Do not leave your drink in mug overnight to avoid stains not dishwasher safe do not use in microwave do not use with hot beverages. The Moscow Mule is a classic cocktail served usually in a copper cup which is refreshing since the 1940 palates. The famous blend of vodka ginger beer and lime juice can be enjoyed especially as with our Antique Hammered Moscow Mule Mug. With an attractive antique hammered to delight the eye it is also made of solid copper which not only keeps your drink cool but brings the flavors of the recipe mule. . Our Antique Hammered Moscow Mule is not intended use for the dishwasher. This product will cause discoloration. Hand wash with warm soapy water and dry it thoroughly with a dry cloth. This product is not safe microwave. Hand wash with warm soapy water and dry it thoroughly with a dry cloth.