In older vehicles this is done via an Ignition Distributor, with newer vehicles using Multi-Outlet Coils with Ignition Leads connected directly to the Spark Plugs. Lemark Ignition Leads utilise a Copper or Glass Fibre core using either Silicon Insulation or Wire Windings to help suppress radio signals.
This product would be ideal for individuals who need to quickly and reliably ignite their lawn mower's internal combustion engine.