Magma Kettle Charcoal Grill 15 The Magma Kettle Charcoal Grill is a quality marine grill crafted of 100 18-9 mirror polished stainless steel for maximum corrosion resistance. The rotating design allows you to determine which direction you would like the lid to open when grilling in windy conditions. You obtain perfect results through use of the adjustable height cooking grill and the variable temperature-control draft door assembly. The Kettle design allows oven-type baking to enhance the grill