The yarns used in the tutorial are:
-Alize Cotton Gold 60 (black)
-Alize Cotton Gold 55 (white)
but you can use any yarn you like and a suitable hook.
Jack is 25 cm (9.8 inches) tall, using the materials listed.
The pattern includes a pattern for crocheting the eyes and a template for cutting out the eyes from felt and gluing or sewing them to the doll.
The crochet pattern for this creepy doll is in English (American terminology).
A template in Ukrainian is also available.