From the Knit Rowan website:
Knit this homeware cushion, available as a free pattern to download. Designed exclusively for Knitrowan by Martin Storey using the wonderful soft blend yarn Wool Cotton 4ply (wool and cotton), this reversible cushion is covered in contrasting little bobbles on one side with a stripe sequence on the other.

Finished dimensions:
Completed cover fits a cushion pad measuring 41 cm (16 inches) square.

Yarn information:
Rowan Wool Cotton 4 ply
A - Rich 493
3 skeins
591 yards

B - Antique 480
2 skeins
394 yards

Extras:
Cushion pad measuring 41 cm (16 inches) square.