How to attach rubber bands to Y shaped launcher of rocket copter?

End users who use rocket copter always don't know how to attach rubber bands to y shaped launcher, now let's talk about the method:

First of all: rubber band should be tightened until it is thinner than the original

Second: embed the thin rubber band into one of the y shaped launcher hooks

Third: repeat above action again to embed another rubber band into another y shaped launcher hook

Last: rubber band between the last two hooks should be straightened and smooth

You could also read more rockt copter relative stories as below:

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