The Coopers Cask Coffee Bourbon & Whiskey Barrel Aged Coffee Box Set comprises four expertly crafted coffee mugs that have been aged in barrels of bourbon and whiskey. These collectible mugs are perfect for coffee enthusiasts looking to add a unique twist to their kitchen or barware collection. Each mug is aged for a specific amount of time to ensure a rich and flavorful taste, making it a must-have for any coffee lover who appreciates a good whiskey or bourbon blend.