The pattern specifies a size 5 steel hook, which is not available on Ravelry’s hook options.

This is a pattern for skirts for the Free Spirit Amigurumi Doll (available on Ravelry) with several options. You will also need a ponytail holder for the elastic waistband of the skirt.

Yardage may vary based on the options you choose in the pattern, but one standard ball of size 10 crochet cotton will yield several garments.