Dia 3.4 inches, depth 3.8 inches, capacity 532ml/18 oz, weight 180 grams, used for moscow mules, beer, copper infused water, iced coffee, iced tea, or any whiskey, vodka, handcrafted moscow mule mug for chilled drink, handmade by the artisans of moradabad, u.p, lacquered finish, product description: copper mugs helps to make your moscow mule and other beverage feel super chilling in hot summer. The cold metal is highly effective at insulating the cold temperature of any liquid, especially good for summertime drinking, and deflecting heat from the sun.copper has a very high thermal conductivity so the coldness from your mule will fly into your hands, lips and throat at an amazing rate. It will feel exactly as the icy drink. This is not possible to get that from a high ball glass and copper mugs have become an essential ingredient for moscow mule. So many people claimed that the mule they made at home feel not right as they experienced in bars, and found the copper cups were the source of that. As for me, copper mug's natural features account for half and the emotional needs for another 50 percent. To be fair, i can't have mule without a copper cup. clean your copper ware by hand and avoid dishwasher as the detergent can cause oxidation leading to permanent damage. Use a solution of equal quantities vinegar or lemon juice and salt diluted with some water at such times but don't use it regularly. Also avoid scratchy cleaners like steel wool. A simple, soft cleaning liquid on soap base, hot water and a soft washing cloth best for daily use.