Moscow Mule Mug, 20 oz. The Moscow mule is a delicious mixed drink, combining ginger beer, vodka, lime and mint. Properly serve these ice cold drinks in our copper Moscow mule mug! Holding 20 ounces, our copper mule mug is stainless steel lined on the inside for easy cleaning with a handsome copper plating on the outside. Copper Moscow mule mug measures 4 tall and 3 in diameter. Hand wash only. Common Questions: Q: What is the difference between this mug and our other Moscow Mule Mugs? Why is it cheaper? A: These 20oz Moscow Mule Mugs are made of stainless steel and copper plated on the exterior. Our other Moscow Mule Mugs are made of solid copper, with a nickle plated lining, and brass accents. They are both great mugs, however it is the difference in the cost of solid copper vs stainless steel and copper plating that accounts for the price difference. If you're more price conscious, these mugs are the way to go. If you want a mug traditionally made just like they were over a hundred years ago, our other Moscow Mule Mugs are your best choice.Holds 20 oz.Stainless steel lined on the insideCopper plated exteriorHand wash only While we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.