This pattern is knitted with two strands of yarn held together throughout. Pattern is knitted on 10mm and 12 mm needles. Suggested yarn West Yorkshire Spinners Re:treat Chunky Roving Yarn weight Bulky (7 wpi) Gauge 9 stitches and 11 rows = 4 inches Needle size US 15 - 10.0 mm US 17 - 12.0 mm Yardage 1071 - 1683 yards (979 - 1539 m) Sizes available 28/30"-48/50"