TOUCHWOOD Moscow Mule 100% Solid Pure Copper Mug Without Nickel Hammered 2 Ounce Brown(shot mugs) 100% pure copper without nickel or steel shot mug set of 2 Hammered look for a classy shine. True to its roots, our solid copper original moscow mule mug offers the performance and reliability the others just can't match The generous 2 oz size is the perfect amount to hold your drink and icecubes without worrying about spills. Our copper cups feature a smooth lip that lets you drink in comfort, unlike the sharp edges found on other mugs.