This is the Cheetah Flying Model Rocket Kit by AeroTech. Adult Supervision Recommended For Those Under 16 Years of Age. FEATURES: Sleek and high performance Precision airfoil molded fins Fin-Lok fin mounting system Labyrinth ejection gas cooling system 3-clipped delta fins with blunt trailing edge Decals Instructions included INCLUDES: One model rocket REQUIRES: Assembly Finishing supplies _ Mantis launch pad (AROT8281) Interlock controller (AROT8381) Motors: Reloadable motor system (RMS) D13-4W D24-4T D15-4T E18-7W E28-7T F24-7W F12-5J F39-9T E16-7W E23-8T F40-10W F22-7J F52-8T G33-7J G64-10W Single use motors (SU) D21-4T E15-7W E30-7T F25-9W F50-9T G40-10W G80-10T Econojet single-use motors F20-7W G35-7W SPECS: Stages: 1 Length: 32" (810mm) Diameter: 1.9" (47mm) Nose cone: 5:1 Ogive Weight (without motor): 10oz. (280g) Motor mount: 29mm (includes 24mm adapter) Recovery system: parachute tlh 3/1/11