ESTES ENGINE B4-2 Standard (3)

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Item Number: EST1601This is the B4-2 Standard Model Rocket Engines/Motors from Estes.Suitable for Ages 10 & Older with Adult Supervision for Those Under 12.FEATURESSingle stage eng ineStandard engine designed for flights in rockets weighing lessthan 4 ounces, including the engineEngines tested and certified by the NAREasy to use and comes with clear instructionsINCLUDESThree B4-2 EnginesThree IgnitersFour Igniter PlugsREQUIREMENTSModel rocketAdult Supervision for Children Under 12SPECIFICATIONSLength: 2.75" (7cm)Diameter: .69" (18mm) Show more