Who knows exactly.
I had to reteach myself how to do it. I used these picture instructions.
Time investment : 8 min. (Fishtails take a little longer that regular braids).
Product investment : Rubber band
Money investment : $.02
You can see my other fishtail braid style here.
Words of wisdom :
Any fool can criticize, condemn, and complain but it takes character and self control to be understanding and forgiving. - Dale Carnegie