The Viski Glacier Rocks Hexagonal Basalt Bourbon Whiskey Set of 4 stones is a stylish and functional addition to any whiskey lover's collection. Made from durable basalt stone, these whisky stones are designed to keep your drinks cool without diluting the flavor. The black color adds a touch of sophistication to any drinkware setting, while the hexagonal shape adds a unique touch to the design. Additionally, their washable feature makes them easy to clean and maintain for continued use. Perfect for chilling your favorite whiskey in style.