Each 50-gram ball of worsted weight American Targhee-Columbia wool is 140 yards. Recommended needle sizes between 7 and 9, and gauge 4.25 to 5.0. It's woolen spun, meaning the fibers trap air making it warm yet light. Suitable for knitting sweaters of every variety, winter accessories, and blankets. This wool is fleeced-dyed and blended in 45 heathered colors. Hand wash lay flat to dry. 100% wool.