It is for the replacement on the crrc pro 26i in the replacement parts section.I am going to get a nother one for my homey 30cc i have just aquired.And the radio shack magnet works just fine just pass it by on either side and one will make it spark going in the correct roation-counter clock wise-I was trying both sides and it actually will spark with the other side of the magnet in the opisite dirrection!!! hmm.........imagine just having a twin engine plane with counter rotating engines!!! And by the way sometimes my echo 21.2 will start and run in reverse pretty decent too...just wont have full throttle.