This is the IQSY Tomahawk Flying Model Rocket Kit by AeroTech. Adult Supervision Recommended For Those Under 16 Years of Age. FEATURES: Authentic detailing Precision airfoil molded fins Fin-Lok fin mounting system Labyrinth ejection gas cooling system 4-Trapezoidal fins with blunt trailing edge airfoil Self-adhesive graphics Nylon parachute Instructions included INCLUDES: One model rocket REQUIRES: Assembly Finishing supplies _ Mantis launch pad (AROT8281) Interlock controller (AROT8381) Motors: Reloadable motor system (RMS) D24-4T E18-7W E11-5J E28-7T F24-7W F12-5J F39-6T E16-7W E23-5T F40-10W F22-7J F52-8T G33-7J G64-10W Single use motors (SU) D21-4T E15-7W E30-7T F20-7W F25-9W F50-9T G35-7W G40-10W G80-10T SPECS: Stages: 1 Length: 41" (104mm) Diameter: 1.9" (47mm) Nose cone: 5:1 Ogive Weight (without motor): 13oz. (370g) Motor mount: 29mm Recovery system: parachute tlh 3/1/11