Estes® B4-4 Model Rocket Engines (3 pk)

Estes B4-4 Standard Engine(3) HAZ, EST1602

Each package includes 3 engines, 3 igniters and 4 igniter plugs. The Estes B4-4 engine is single stage engine designed for model rocket flight Designed for flights in rockets weighing less than 3.5 ounces, including the engine ***Please Note: This product can only ship via USPS due to it's classification as a toy propellant device.