You can use any kind of yarn for this pattern.
No Face amigurumi is about 9 cm (3.5 inches) tall.

Used stitches:
MR = magic ring
ch = chain
sc = single crochet
inc/2 sc inc = increase (2 sc per stitch)
3 sc inc = 3 sc per stitch
dec = decrease (sc across two stitches)
sl st = slip stitch