Welcome to the Orange Lamp Post. The Moscow Mule copper mugs are made of 100% copper & is hand hammered to give a beautiful texture to the cup. Grab it to add a new look to your Barware. They are easy to clean & maintain. Drinking water or any liquid in copper mugs is really healthy. Very cool metal mug for fans of industrial style design. Handles of the mug is made up of brass & rest of the mug is made of copper. They are tarnish resistant. Beautiful & bright. This mug would make an excellent pencil cup for your desk - perfect for Neo-Victorian desk accent pen storage. Since this is metal it is NOT microwave safe. For best care of the finish, hand-wash only with a gentle, non-abrasive detergent. To dry & maintain a clean, bright finish wipe with a soft microfiber towel. Also since this is metal, it conducts heat very well & should not be used with hot beverages. Limited quantity available. 1. 100% copper with a brass handle which adds to the look of the mug. 2. You can chose between two options: Option 1- Set of 2 copper cups Options 2- Set of 2 copper cups with an alcohol jigger & 2 copper straws 3. Easy to store & clean. Good quality copper mugs which are made of heavy metal. in case you have any questions or feedback please write to us, We will be more than happy to hear from you. Thanks for visiting the Orange Lamp Post. Pure Copper Mugs, Cups, Moscow Mule Beer Mug, 100% , Drinking Anniversary Gift, Cups