100% Pure Copper Mugs (set of 2) - 16oz Hammered Copper Cups - BONUS Copper Straws - Moscow Mule Copper Mugs - Riveted Handles 100% PURE COPPER - Not lined with other metals (nickel, steel). Copper enhances the taste of your drink and actually feels colder. For thousands of years, copper has been known to give health benefits as well (AyurvedaHealing) HANDCRAFTED None of our authentic copper mugs are identical. And yet, each mug feels like it is made to be in your hand DURABLE STYLISH HANDLES Not only are riveted handles stronger than welded handles, but they are also much more stylish! SATISFACTION GUARANTEED We drink from our mugs and are proud of them! But, if for any reason you aren't completely satisfied with yours, just let us know for a return/refund.