Hat Years 3-5 6-9 10-12 cm 41 46 51 in 16 18 20 Scarf width x length cm 15 x 100 17 x 115 19 x 137 Suggested yarn West Yorkshire Spinners The Croft DK Yarn weight DK (11 wpi) Gauge 21 stitches and 40 rows = 4 inches Needle size US 3 - 3.25 mm US 6 - 4.0 mm Yardage 492 - 738 yards (450 - 675 m)