Estes Rocket Science Model Rocket Launch Set, Beginner Skill Level Kit with Engines, Launch Controller & Pad, and Altitude Tracker (5326)Are you ready for a high flying adventure with the "Rocket Science" model rocket kit? It has everything you need (except batteries) to launch and track your rocket! Includes: One Model Rocket Kit, Porta Pad II Launch Pad, Electron Beam Launch Controller, 2 different Engines (with Plugs, Starters and Wadding), and Mini AltiTrak altitude tracker. This kit is the perfect way to have fun while exploring STEM (Science, Technology, Engineering, and Math)