Moscow Mule Copper Mugs from Love Artisans. This Mug is Designed to Keep Drinks Chilled. Makes a Classy Gift. 16 oz, Stainless Steel Lining to Reduce Reactivity. The Traditional and Classy item that No Home should be Without Are you tired of drinking cold drinks from lukewarm glass mugs? Do you want to have beautiful and authentic copper plated mugs on display? Mug feels very cold to touch when ice is added Comfortable solid grip with brass handle