Be ready to challenge your building skills with the mini "a" Heli! A "competition ready helicopter recovery" Rocket is joining the Estes line and will challenge your building skills to get the "blades" Just right for a maximum duration Descent of 45-60 seconds in Dead air. Powered by an a10-3t, this Rocket is just waiting to be added to your collection.Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly. Tools, construction and finishing supplies sold separately. In order to launch, a launch system, model rocket engines, starters and recovery wadding are required - sold separately-unless otherwise specified.