1601 B4-2 Standard Engine (3) HAZ
This is the B4-2 Standard Model Rocket Engines Motors from Estes.
Suitable for Ages 10 & Older with Adult Supervision for Those Under 12.
FEATURES: Single stage engine Standard engine designed for flights in rockets weighing less than 4 ounces, including the engine Engines tested and certified by the NAR Easy to use and comes with clear instructions
INCLUDES: Three B4-2 Engines Three Igniters Four Igniter Plugs
REQUIRES: Model rocket Adult Supervision for Children Under 12
SPECS: Length: 2.75" (7cm) Diameter: .69" (18mm)