SNT - Moscow Mule Polished Copper Mug 16 Ounce (16oz) Beautiful Polished Surface Moscow Mule Mugs. Measures 4.2" x 4.0" x 4.2" and Holds 16 Oz Moscow Mule These mugs make a great idea for Christmas Gifts! Stainless steel lining with a copper plated exterior and Brass Handle Food-safe Lacquer Coating. NOT dishwasher safe and are not safe for Microwave use. Wipe clean with warm damp cloth and hand dry clean