B6-4 - 2 Packs of 3 for 6 Engines . Includes three B6-4 rocket engines, four model rocket starters, and four starter plugs. The B6-4 engine is single stage engine designed for flights in rockets weighing less than 4 ounces, including the engine Each engine measures 2.80" (7cm) long and has a 0.70" (18mm) diameter. PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or Post Office box for delivery
K**R
Epic failure
Not a single engine could be ignited- not enough starter to start the engine. Absolutely terrible experience
A**
Rockets remained grounded. No flight recorded. Kidd upset.
Engines would not work. Ignitor would not fire engine. Material was hardened and would not combust. Kids were very disappointed.
Trustpilot
5 days ago
2 days ago