This yarn from Sirdar under the Hayfield banner is Bonus Aran.
It's made from 20% Wool & 80% Acrylic in mega 400g balls.
Yarn Weight: Aran
Needles & Hooks: 5mm
Ball Weight: 400g
Length: 840m/ 920yds
Tension: 18 stitches, 24 rows to 10cm
Wash Care: Machine wash at 40 degrees, dry press (iron 1) no tumble dry or dry clean.