Therma-Tek 89015 Charcoal Briquettes Char Rocks are designed to enhance your grilling experience. Each bag contains high-quality lava rocks that effectively distribute heat and improve airflow, ensuring even cooking. One bag is sufficient to cover a 12" broiler section, making it an ideal choice for your grilling needs. These durable rocks retain heat for longer periods, allowing for consistent temperatures and better flavor infusion in your food. Perfect for use in various grilling setups, they are a reliable addition to your outdoor cooking essentials.