Content: 100% polyester, Care: This yarn for knitting, crocheting, amigurumi and craft projects is easy to care for, simply machine wash and dry all crafted items. Knitting Gauge: 10 sts and 12 rows with a 9 mm knitting needle Crochet Gauge: 8 sc and 9 rows with a 9 mm crochet hook Ball Size: Each ball of this #6 Super Bulky Gauge Yarn is 280g (9.9 oz) and 177m (194 yd) long.