Both trendy and traditional, the Moscow Mule Copper Mug has staked claim as a top selling product for years. Custom etched with a single block initial and fit with a polishing cloth for upkeep, this uniquely rustic mug will make an ideal addition to any home.FREE PersonalizationDimensions: 4 in. H w/ a 3.5 in. diameter / 17oz.Features: 100% copper mug with shapely handle and free personalization Materials: 100% Copper. Please Note: Copper is a beautiful metal that naturally patinas over time. To maintain the original shine, it must be cleaned and polished regularly. Natural surface variations are inherent in 100% copperCare Instructions: Hand wash only with warm water and mild dish soap. *See enclosed instructions for further assistance.Engraving Options:: May be engraved with a single, block initial at No Additional Cost. See More Photos for additional options.