Our premium Smokey Black Decorative Aggregate Bulk Bag. Made from high-quality Smokey Black Granite Gravel, this aggregate boasts a unique blend of natural stone that turns a beautiful black when wet. Its dark colour offers a unique and stylish look while providing a strong and durable base for pathways and driveways. The 20mm size is ideal for residential landscaping projects. It is the perfect addition to any garden, driveway, or landscaping project.