Krown Kitchen - Moscow Mule Copper Mug | Stainless Steel Lining | 16 oz UPGRADED HANDLE - new and improved ergonomic handle provides an effortless grip while maintaining its elegance and beauty Amazing Value - Complete 4 pack set with 4 coasters, recipe book, and a cleaning cloth Stainless Steel Lasts Longer - 100% copper mug will rust over time through oxidation of the metal Double Wall Construction - keep your drink ice cold; ice will remain frozen for at least 2 hours! Entertain Guests With Style - The clink of the metal on metal cheers is priceless