Each ball weighs 100 grams and has 75 meters. This is a heavier weight yarn and we recommend using size 10 ¾ - 11 (U.S.)/(7-8 mm) knitting needles. 7 balls of yarn are required to make a size 12 woman’s long sleeve jumper. To make a 4x4” tension square work 8 sts and 12 rows. Machine wash up to 30ºC. Do not tumble dry.