Rustica is a classic crochet thread, non-mercerized 100% cotton. Great for creating woven fabric and blankets, along with quilting, tablecloths, etc. Each ball has 920 yards, 5.4 oz., and comes in 6 colors. Recommended hook size B/1. Care: Machine wash gentle cycle, preferably hand wash, warm water, no bleach, rinse well and promptly remove. Roll in towel, block. Rinse with water and salt when combining with colors.