All the colors listed here appear in the Comfort Knitting and Crochet Afghan Book by Norah Gaughan, Margery Winter and Berroco design team. Comfort Chunky is a nylon acrylic blend that may be machine washed and dryed. 100 gram balls, 150 yards each knits at 14 stitches per 4 inches on a #10.5 or crochets at 13 single crochet per 4 inches on a J hook