Copper Mug for Moscow Mules - 12 oz size PURE COPPER MOSCOW MULE MUGS: Our Mint Julep Copper Mugss Are Made From The Highest Quality Materials And Are Ultra Durable. Each Piece Is Coated With A Food Grade Lacquer Copper Coating To Last For Years To Come Without Tarnishing. Each MUG Is Made With Superior Grade Material. PERFECT 12 OUNCE MINT JULEP MUG CAPACITY: The Mug Of Choice When Serving The Famous Mint Julep. The Copper Enhances The Experience By Keeping The Drink Cold And Delicious. The 12 Ounce Capacity Copper Julep Mug Is Perfect For Every Drink. MAKES A GREAT GIFT: Perfect Size For A Moscow Mule And Other Cold Beverages. Keeps Drinks Cold and Delicious!