Top Shelf Creation Hammered Moscow Mule Copper Mug Stainless Steel Lining 20 Oz Set Of 4 Always buy from the seller "TOP SHELF CREATION". Other sellers are selling at lesser rates and are selling replicas/cheaper products. DONT FALL FOR THESE CHEAP REPLICAS & BUY AUTHENTIC PRODUCTS FROM "TOP SHELF CREATION". Look on RIGHT HAND side and Add to cart. Amazing Value- Set of 4 Moscow Mule Mugs with Brass handles and 20 Oz capacity Stainless Steel Lasts Longer - 100% copper mug will rust over time through oxidation of the metal. Material is 100% food safe unlike copper which reacts with lime and spoils the mug and drinks.No Nickel Lining, 100% Stainless Steel inside which keeps your drink cold and safe.. Tarnish resistant copper platting helps keep the beauty of the mug intact for years to come. Stunningly Beautiful And 100% Handcrafted Hammered Copper Mugs