This copper mug is 100% copper so it is going to keep any cold drink ICE COLD! Copper naturally keeps drinks colder than other containers. You get ice cold drinks and a beautiful copper mug! This is a beautiful addition to any kitchen or bar. The copper cup is easy to clean but, they aren’t recommended for the dishwasher or hot liquids. You will enjoy using this mug and it holds 16oz. The cups are usually used for cocktails but, you can use them for any cold beverage. This mug is available on Amazon 100% Copper Mug, start making Moscow Mules and Other great cocktails, a perfect gift to give or get, keeps drinks colder and longer. This beautiful copper mug makes a great gift for any occasion and for anyone. I did receive my 100% Copper Mug for free to review but, the opinions are mine. My whole family enjoys using copper mugs. Cold drinks stay really cold much longer and the cups are light. The Copper is beautiful, sleek, and elegant. Brought to you by Gear Ultimate offering you quality products you can depend on.