Katia Norway, is a basic wool, with a very nice yarn. Can Machine washable up to 30 ° and low iron. Composition Polyester 80% Acrylic and 20% Wool. Each skein has 100 grams or 100 meters. It can be knit with knitting needles of 5.5-6 mm or crochet needles 6 mm. With 6 balls of size 42 sweater is knit.