Copper mugs also called as Moscow Mule mugs are designed for your cocktails and mocktails for a totally refreshing experience. Drink copper water in copper mugs made of real copper with no lining or plastic like finish. They make your drinks taste excellent and are a great fit in your freezer. PERFECT SIZE – 16oz for your drinks not too small not too large. FOOD GRADE LACQUER – copper mugs coated with food grade lacquer on the inside to retain the shine HANDLE with NO RIVETS – the handle of copper mug is fitted with no rivets but welded carefully to retain the liquid and is leak-free.