PREMIUM MODEL ROCKETRY EXPERIENCE Introducing the Estes Tandem-X Flying Model Rocket Starter Set, a comprehensive kit designed to launch you into the exciting hobby of model rocketry. This set includes two beginner-friendly rockets, the Crossfire and Amazon, along with all essential launch equipment. TWO DISTINCT ROCKETS The Amazon rocket measures 33.6 inches in length and has a diameter of 1.35 inches, capable of soaring to an impressive height of 650 feet. It is engineered to be flown with Estes engines B4-2, B4-4, B6-2, B6-4, C6-3, or C6-5 (not included). FLY HIGH WITH CROSSFIRE The Crossfire rocket stands at 15.6 inches long with a diameter of 0.976 inches and reaches amazing altitudes of 1200 feet. It requires Estes engines 1/2A6-2, B4-2, B4-4, B6-2, B6-4, B6-6, C6-3, or C6-5 (not included) for launch. COMPLETE LAUNCHING SOLUTION Included in this set is the Porta-pad II Launch Pad and the Electron Beam Electrical Launch Controller, ensuring you have everything needed for a hassle-free launching experience. STEP-BY-STEP INSTRUCTIONS To help you every step of the way, the starter set comes with detailed instructions, making it perfect for both novices and aspiring rocketry enthusiasts. Embark on a thrilling journey into the world of model rocketry with the Estes Tandem-X Starter Set, where adventure and education take flight.