Review (3/5): Works ok.  Harder to get a tight braid with thin hair.
I have tried to learn to french braid and just haven't been able to figure out how to do it with only 2 hands. This tool does help, but my daughter has thin hair and it seems like it doesn't hold it tight enough for a really secure braid. It's fine for everyday braid, but maybe with more practice it will be competition worthy for her Gym meets.