The yardage does not include the amount needed for the tassel.

Gauge
7 sts and 10 rows to 2 inches with st st using yarn double and 7mm needles.

Measurements
Width round head
46 and 53 cm (18 and 21 inch)

Each pamphlet has a different set of recommended yarns. The following are from the Argyll version.

Materials
ARGYLL Machine Washable Double Knittings
Ferntex, Super Nylon, Nice ‘n’ Easy Crepe, NEW Sportsday, or Babytime
5, 7 balls
Small balls yarn for tassel.