Set of 4 Pure Copper Mug for Moscow Mule Capacity 16 oz Copper Mug Perfect Pure Copper Unlined Moscow Mule Copper Mugs PURE, 100% SOLID COPPER - Authentic Moscow Mule Taste - NOT MADE OF ALLOYS, and have NO INNER COATINGS OR LINING HEAVY AND BUILT TO LAST - Notice the weight of our product: 16oz weighs 180 grams FREEZABLE - For a ICE COLD Frosted Mug Effect. A real copper mug frosts up in seconds! These mugs get cold - Really cold! HAND MADE WITH PURE COPPER No nickel or stainless steel! These mugs are the real deal--d