Drinkware Essentials 100% Pure Copper Barrel Mug. 16oz Polished Moscow Mule Mugs With Thumb Rest Keep Drinks Icy Cold. Premium Unlined Cups Great for Cocktails & Will Be The Talk Of Your Next Party! HANDCRAFTED BY ARTISANS: Polished 100% solid copper mugs manufactured from the finest raw materials. LESS ICE = LESS DRINK DILUTION: Extra thick copper mugs keep drinks well chilled without extra ice. NOT JUST FOR MOSCOW MULES: Excellent cups for iced cocktails, beer, Mojitos and ANY cold beverage. TAKE ENTERTAINING TO THE NEXT LEVEL: Our mugs will WOW your guests & be the talk of your next party! LOVE THEM OR GET A REFUND: Give one a try, decide later. You'll quickly realize they're the best.