Estes B4-4 Model Rocket Engines 3 Pack

• Sturdy engines tested by the National Association of Rocketry.
• INCLUDES: One Package of Three B4-4 Model Rocket Engines
• REQUIRES: B Rocket Model Equipment for use
• WARNING: Product is flammable. Use caution.
• Do not burn engines or soak in water.
• Estes engines are for use only with Estes model rocket products.

This is a pack of three B4-4 Standard Model Rocket Engines/Motors from Estes.

Product is recommended for adult use only.

FEATURES: B class model rocket engine pack contains igniters and plugs.

Single stage rocket pack.

Easy to use and comes with clear instructions.

SPECS: Length: 2-3/4" (7cm)

Diameter: 3/4" (1.7cm)