Retail cost is $20 for an individual ponytail.
Kanekalon curly 14" ponytail in one of five colors: Blond, Brown, Caramel (light brown), Dark Brown, or Red. Top of ponytail has braided accent, knit lining, and velcro and small comb for attachment to doll's hair. Package offers instructions on how to place ponytail on doll.
Video instructions are available at the American Girl website here.