Home Hardware Specialty Flame Tamer Ceramic Grill Brick Set For Gas and Electric Grills. Set of 30 FOR ELECTRIC AND GAS GRILLS. Enhances the performance of your barbecue. DISTRIBUTES HEAT EVENLY. Prevents hot spots so your food cooks evenly. FOR BETTER TASTING GRILLED FOODS. Enhances charbroiled flavor. REPLACES LAVA ROCKS OR BRIQUETTES. For better flavor and heat distribution SET OF 30. Each measures 3.5"L x 2"W X 1/4"H.