Estes 2240 Model Rocket Pro Series II Launch Controller Roadname_Utah Railway - ECRY The first being durability

The first being durability

40" (290mm)

Along with these variations

including: key

Estes 2240 Model Rocket Pro Series II Launch Controller Roadname_Utah Railway - ECRY The first being durabilityEstes 2240 Model Rocket Pro Series II Launch Controller The Pro Series II Launch Controller is the ultimate launch controller for any single or clustered rocket! Powered by six, C size alkaline batteries (not included), this launch controller provides plenty of energy to your single or two engine cluster rockets. The Pro Series II Launch Controller also features an alternative power source option for launching up to 10 rockets, a two button arming and