Product details:

Old Dutch International Set of 4, 24 oz Solid Copper Moscow Mule Mug Hammered New. This unique and stylish hammered finish mug is constructed of solid copper with nickel lining and solid brass accents, the made-to-last mug features a coating of resilient lacquer that resists tarnishing for lasting beauty and luster. The mug of choice when serving Manhattan's infamous Moscow Mule, a cocktail made from a blend of vodka, ginger, beer, and lime juice. Solid copper construction with nickel lining and solid brass accents tarnish resistant lacquer coating preserves beauty and luster. Not for microwave purposes.