Estes B6-4 Standard Rocket Engine

Estes B6-4 Standard Rocket Engine (ESTT1606)

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This is the B6-4 Standard Model Rocket Engines/Motors from Estes.Suitable for Ages 10 & Older with Adult Supervision for Those Under 12.FEATURESSingle stage engineStandard engine designed for flights in rockets weighing lessthan 4 ounces, including...
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