This is the Barracuda Flying Model Rocket Kit by AeroTech. Adult Supervision Recommended For Those Under 16 Years of Age. FEATURES: Over 4 feet long Precision airfoil molded fins Fin-Lok fin mounting system Labyrinth ejection gas cooling system 3-tapered swept fins with double-wedge airfoil Decals Instructions included INCLUDES: One model rocket REQUIRES: Assembly Finishing supplies _ Mantis launch pad (AROT8281) Interlock controller (AROT8381) Motors : Reloadable motor system (RMS) E11-3J E18-4W E28-4T F24-7W F12-5J F39-6T E16-4W E23-5T F40-7W F22-7J F52-8T G33-7J G64-10W Single-use motors (SU) E15-4W E30-4T F25-9W F50-9T G40-10W G80-10T Econojet single-use motors F20-7W G35-7W SPECS: Stages: 1 Length: 56" (1420mm) Diameter: 1.9" (47mm) Nose cone: 5:1 Ogive Weight (without motor): 14oz. (400g) Motor mount: 29mm (includes 24mm adaptor) Recovery system: parachute tlh 3/2/11