STREET CRAFT Set Of 4 Barrel Mugs Hammered Copper Moscow Mule Mug Handmade of Pure Copper Nickel Lined Brass Handle Hammered Moscow Mule Mug Cup Capacity 16 Ounce Handcrafted pure copper hammered moscow mule mug with nickel lined . Dia 3.3 inches, depth 3.8 inches, weight - 175 grams Copper keeps drinks ice cold and for longer period than glass mugs Can be used for mojito, apple martini, cosmo, margarita and all cold beverage Do not microwave, wash by hand only