Solid Pure Copper Nickel Lined Interior Hammered Moscow Mule Mug 4 PACK - 16 Oz. * Twilight Parties* Set of 4 Nickel Lined Solid Copper Mug - 16 oz Beautiful High Luster Finish Enjoy with Moscow Mule, Beer, Coffee......... Wipe clean with warm damp cloth and hand dry clean Not for use in microwave or dishwasher