Katia Merino Grosso, is a classic very soft superwash merino wool 100%. You can machine wash up to 30 °, tumble dry and low iron. Composition 100% Merino Wool Superwash. Each ball has 50 grams or 60 meters long. It can needletacking 5.5-6 mm knitted or crocheted needle 4.5 mm. With 12 balls size 42 jersey knits.