Come and Check Our Promo Solutions.Made of high-quality 304 stainless steel, the copper mug has good thermal conductivity. Mule mug is handmade and polished. High quality, smooth and food safe. No harmful chemical coatings. There are no sharp and rough edges. The firmly welded handle is durable and comfortable to hold. The copper cup helps keep it cold for longer and creates a better taste. It is very suitable for people who like cold drinks, such as cocktails, odka, tequila, whiskey, beer, rum, ice tea. Pls check inventory and detailed info with us before placing your orders.