Pattern specifies: Sport Weight Yarn: White--16 ounces (450 grams, 1,790 yards) Green--7.75 ounces (220 grams, 870 yards) Crochet hook, size F (3.75 mm) or size needed for gauge .25” ribbon--7 yards / 6.4 m; tapestry needle; sewing needle and thread Gauge: In pattern, (5-dc group, 2dc) 3 times and 10 rows = 4” / 10 cm The pattern (#24 in the book) begins on page 57; the photographed afghan is on page 33.