You will need 3 x 50g balls of yarn.
From the pattern description:
Keep out the chilly draughts with this soft cowl collar.
Working with a circular needle may be unfamiliar to start with, and increasing within the lacy pattern will need concentration.
Magazine issue: 39
About the publisher:
The Art of Knitting is available as a weekly partwork magazine, published in the UK by Hachette Partworks Ltd, PO Box 77, Jarrow, NE32 3YJ. Back issues are available.