Estes B4-4 Engine Pack (3-Each)

Estes B4-4 Engine Pack (3-Each)

• The B4-4 engine is single stage engine designed for model rocket flight
• Each package includes 3 engines, 3 igniters and 4 igniter plugs
• Designed for flights in rockets weighing less than 3.5 ounces, including the engine
• ***Please Note: This product can only ship via USPS
• You MUST HAVE a physical mailbox or post office box for delivery

The B4-4 engine is single stage engine designed for model rocket flight. Each package includes 3 engines, 3 igniters and 4 igniter plugs. Designed for flights in rockets weighing less than 3.5 ounces, including the engine. ***Please Note: This product can only ship via USPS. You MUST HAVE a physical mailbox or post office box for delivery