Box contents: 2 x Moscow Mule cups<br> Eye-Catching Copper Mugs: These Moscow Mule mugs look great in cabinets and on the table.Absolutely an eye-catcher and everyone commented directly.What's particularly nice about copper mugs is the cooling tube, which causes the outside of the mug to fog up a bit - a big effect, especially in summer.<br> Copper plated on the outside and food grade 304 stainless steel on the inside.If juice or acidic drinks are not cleaned in time, copper products will rust, but stainless steel will not.Dimples and more.Copper cups are very sturdy and since they are made from one piece, there is no risk of them leaking.The handle is welded, not riveted.<br> Drinks stay cold: Because copper is an excellent conductor, drinks in copper cups stay cold for a long time!The coldness of the ice cubes is immediately transferred to the Moscow Mule cup, the handle becomes cold and the outside of the cup fogs up.The drinks they contain stay cooler and taste better.<br> No oxidation stains: Despite using the Moscow Mule Cup several times, there are no sweat stains on the handle and no dark spots like other retailers.Copper cups have no residue and no smell.How do I deal with copper cups?Do not put in the dishwasher, use a small amount of soap and dry immediately, hot drinks not recommended.