These beautiful classic tumblers are great for Moscow Mule drink. The copper plated, stainless steel design helps to keep your drinks colder or hotter for longer, the double wall helps insulates better than regular Moscow Mule mugs. Although these tumblers were originally designed for the Moscow Mule drink, they're perfect for enjoying any cold or hot beverage from water and tea to cocktails and beer. The tarnish resistant copper finish of these mugs does not contain nickel, lead, or any other toxic substances so they're safe for all of your favorite beverages. Each mug measures 3.5" (D) by 5" (H) *Care Instructions: This product is not suitable for the dishwasher. Hand wash and towel dry only.