Stand back...you're about to launch the world's most popular model rocket engine. These are the famous model rocket
engines that made model rocketry the great activity it is today. Estes model rocket engines have been proven consistent
and reliable in more than 315 million launches. Each pack includes 3 model rocket engines and enough igniters and
igniter plugs for your next rocket flight. Ignition requires an Estes launch system - sold separately.