Half Pound 100% All Solid Copper Handcrafted Moscow Mule Mugs (No Stainless Steel Interior) 16oz Set of 4 - Smooth Polished Finish - From Morken QUALITY: Each of our commercial quality mugs is made of 100% solid copper construction and weighs over one-half pound. Thick 22-gauge copper gives each mug a heavy feel, while the large copper handle provides a sturdy grip for your ice cold drink. You will not find a higher quality Moscow Mule Mug. AUTHENTIC: The Moscow Mule is intended to be served in a copper mug that allows the citric acid from the lime to react with the copper. Morken Moscow Mule Mugs are 100% COPPER THROUGHOUT and there is NO LACQUER on the interior. Beware of imitations that are merely copper coated or lined with stainless steel, tin or nickel. CRAFTSMANSHIP: Morken Moscow Mule Mugs are handmade in a 2 day, 15 step process. Because of this, no two mugs are exactly identical! From the application of the large handle to the beveled base, the attention to detail when crafting Morken mugs is unmatched. GREAT GIFT: Morken mugs are packaged and ship in a custom designed gift box with recipe, cleaning instructions and the history of the drink included. Everyone enjoys receiving Morken Moscow Mule Mugs, making them a great gift for birthdays, weddings, anniversaries, housewarming parties, bachelor or bachelorette parties, for the groomsmen or bridal party, to give thanks, or just because! BUY WITH CONFIDENCE: Morken has come to be known as a trusted brand that stands behind 100% of its products. If you dont completely love your mugs for any reason, please return them for a full refund. We welcome all product questions with customer support available 7 days a week.