Malabrigo Rios - Indiecita (416) Worsted weight, plied, 210 yds in 100 gr hanks Recommended hook size US I-9 to K-10/12 or 5.5-6.5 mm Gauge: 18.0 to 22.0 sts = 4 inches on US 7 to 9 needles 100% Merino Superwash Wool Machine washable, gentle cycle, cold water, do not tumble