soft "round" brush for DD's hair

[Babywhite]

I would like to use a small soft "round" brush when blowing the ends of DD's hair dry. I felt of all of the brushes in a store tonight, but they all seem too hard. The "normal" baby brushes (the ones you can buy anywhere) aren't doing what I need. I'm going to a beauty supply store next week. Can anyone suggest the type of brush I need to purchase?

TIA :)

R.W.