AllPoints Foodservice Parts & Supplies 281037 Charcoal Briquettes Char Rocks are designed for optimal heat retention and distribution. This 7 lb. bag of lava rock covers approximately 2 square feet, making it ideal for enhancing your grilling or smoking experience. The durable lava rock helps to maintain consistent temperatures, ensuring even cooking and flavor infusion. Perfect for use in various outdoor cooking applications, these char rocks are a reliable choice for both professional and home chefs.