✓ PREMIUM 100% COPPER MUGS PERFECT HOME BAR DISPLAY: Very durable and well-made to withstand everyday practical use. There’s nothing like a good Moscow Mule in an authentic 100% copper cup just like how it came about originally back in 1941! And with their luster! ✓ FOOD SAFE PURE COPPER | TARNISH, RUST & STAIN RESISTANT: US-based third party lab-tested and certified for food safety. Copper mugs are naturally prone to tarnishing over time. But purposefully designed to withstand tarnish, rust or stain, our copper mugs feature a proprietary food grade lacquer coating in both its interior and exterior. ✓ HANDCRAFTED W/FOOD GRADE LACQUERED-PROTECTED HAMMERED FINISH: Premium Moscow Mule cups beautifully handcrafted by our expert coppersmiths! Perfect for cocktails, our 22-gauge thick Moscow Mule mugs will keep your drinks cold! It also features a smooth rounded lip. ✓ ERGONOMIC WELDED HANDLE(NO RIVET): Designed to provide a solid comfortable grip! Our mug has a good balanced weight to it.