Each ball weighs 50 grams and has 260 meters. This is a fine weight yarn and we recommend using size 3-4 (U.S.)/(3-3.5 mm) knitting needles and size C2 (U.S.)/(2.5 mm) crochet hook. 5 balls of yarn are required to make a size 12 woman’s long sleeve jumper. To make a 4x4” tension square work 26 sts and 34 rows. Machine wash up to 30ºC on a wool cycle. Do not tumble dry.