This is the A3-4T Mini Model Rocket Engines/Motors from Estes. 1507
FEATURES: Single stage engine Mini engine designed for flights in lightweight rockets Engines tested and certified by the NAR Easy to use and comes with clear instructions
INCLUDES: Four A3-4T Engines Four Igniters Four Igniter Plugs
SPECS: Length: 1.75″ (4.4cm) Diameter: .5″ (13mm)
