Serve your Moscow Mules (or any cold cocktail) in style with this awesome STAGLIFE set. You get FOUR heavy-duty 16-ounce copper mugs in two cool finishes: two in a solid Black hammered finish and two in an Antique Black finish. They're made from 100% pure copper, which isn't just for looks – copper is an amazing thermal conductor. Pour a chilled beverage in, and you'll see condensation (frost) form on the outside in just seconds, keeping your drink icy cold longer. The substantial weight and hammered texture feel great in your hand and give a real masculine, rustic vibe. They're perfect for guys' nights, barbecues, or as a unique gift. Important care note: To keep them looking their best, hand wash only (no dishwasher), don't use them for hot drinks like coffee, and clean the inside occasionally with half a lemon dipped in salt to maintain the copper. This 4-mug set means you can serve a whole group in matching, impressive style. Elevate your home bar and impress your guests with these classic, functional mugs.