Three-pack of Estes B6-4 rocket engines – a standard engine designed for rockets weighing less than 4 oz., with more power than the A3-8.
- Three model rocket engines
- Three igniters
- Four reusable igniter plugs
Ships USPS to physical addresses only; cannot deliver to P.O. Boxes. Must be at least 14 years of age to purchse engines in California and New Jersey, and at least 10 years old to purchase engines in North Dakota.