This is a genuine manufacturer-sourced component which is specially designed for Weber grills. The ignition assembly produces a spark to ignite the burner, unfortunately, over time parts may wear out and begin to fail eventually requiring a replacement. Please make sure to check the appropriate diagrams of your model for the correct locat...Read moreion and application of this item. It is a complete assembly which is sold individually, note that it includes one piezo ignition, one electrode, and two electrode wires.