If you use Red heart yarns medium (4) size you will need a 3mm hook, the doll will be approximately 19’’ tall.

If you use Hobbii yarn or any other fine yarn (2) you will need a 2mm crochet hook and the doll will be approximately 13’’ tall.

Optional
You can use wire o cleaning pipes to give some support to the arms, legs and neck.
You will need some material to make the tutu.