This is the 6 inch parachute by Estes. For ages 10 years and up. Ready to use on model rockets that require a smaller parachute. 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, igniters and recovery wadding are required - sold separately-unless otherwise specified.