Each ball weighs 25 grams and is 110 meters. This is a fine weight yarn and we recommend using size 2.5 – 3mm (2 – 4 U.S) knitting needles and size 2 – 2.5mm (B – C U.S) crochet hooks. 3 balls of yarn are required to make a baby jumper in size 3 months. To make a 4×4″ tension square work 28 sts and 35 rows. Machine wash up to 30º C on a wool cycle. Do not tumble dry.