Check the listing for details. Estes Flying Model Rocket Kit Crossbow SST EST 7234 OOP. Condition: New. Listed at 18.89 USD. Estes Flying Model Rocket Kit Crossbow SST EST 7234 Out of ProductionImpressive yet powerful! Launched on an Estes C6-5 engine, the Crossbow SST can reach awesome heights of 1600 ft. Modeled after the Satellite Interceptor, this rocket is sure to be a hit!Skill level 2 IntermediateLength 15"(38.1cm)Diameter 0.74"(19mm)Approximate Weight 1.1oz(31.2g)12"(30.5cm) Parachute RecoveryRecommended Engines: A8-3, B6-4, C6-5Projected Maximum Altitude: 1600'(396m) Model Rocket Kits are rated by Skill Level1 Beginner2 Intermediate3 Advanced4 Expert5 MasterIf you are just starting in the hobby start at the beginner level and move up from there at your own pace.What is needed to build and flyAll model rockets come in kit form that require assembly. The materials are primarily cardboard tubes, balsa or plastic fins and nose cone. Materials will vary by model and are typically specified in the description of each kit. Additional supplies will be necessary to build and finish your model rocket kit and may include:Scissors, Hobby KnifeRulerWood Glue, Model Cement or CA(Super Glue)SandpaperMasking TapeFinishing Supplies like:Wood FillerSealer/PrimerPaintLaunching Equipment and Supplies like:Recovery waddingLaunch PadLaunch ControllerPower supplyModel Rocket Motors and IgnitersA safe place to fly using guidelines from the National Association of Rocketry Safety Code