I can allow my children to put color in their hair wothout worrying about how I am going to get it out before photos or some event where the color would be innapropriate. It also allows my children to try out some new looks before committing. I even tried these today and I was totally stoked to have colored streaks but don't have to worry about washing it all out before a meeting Tuesday.
Really easy to apply, it just combs right in. So easy and effective!