I used about 3 MLP hanks to rehair my Toralei. She's got really full hair tho. I just ordered some new hair for my Operetta and I chose one 38" hank of the base color and one MLP hank of highlight color. I think the normal 38" hank is twice the size of a MLP hank since the price is double. I use nylon to rehair my dolls, because I find it easiest to style and it doesn't get messy easily.