COPPER--No nickel, stainless steel, or food lacquer lining! These copper mugs are the real deal--drink the moscow mule the way it was meant to be enjoyed, with a handcrafted pure copper mug. you can buy these copper mugs with confidence. ICE COLD DRINKS: Our Copper Mug The pure copper locks in the drink's coolness, giving you the coolest experience no matter how hot it gets outside. MAKE YOUR KITCHEN SHINE: The shiny copper exterior glimmers wherever it is placed, and it's the perfect staple for any great host or party-thrower. These mugs are Beautiful and come with a Bouns shot glass. Each Copper Mug works great for chilled beer, iced coffee, iced tea and any vodka, gin, rum, tequila, or whiskey mixed drinks, the generous 16 oz size is a fan favorite of many experts that love copper drinkware. Note: Please do not use acidic substances in your pure copper mug. COPPER SHOT GLASS: Get ready to enjoy your cocktail creations in style.