Crockery Wala & Company Copper Steel Set of 4 Barrel Hammered Moscow Mule Copper Mugs and a  Bag PURE COPPER BUT HIGH QUALITY WITH A SHINING SURFACE GREAT NEW LOOK WITH 18 OZ HEAVY WEIGHT OF 200 GRAMS PER MUG STYLISH & SMOOTH HANDLE WITH INNER STAINLESS STEEL LINING BEST FOR COCKTAIL DRINKS