Content: 100% Polyester, Care: This yarn is easy to care for, simply machine wash and dry all crafted items Perfect for Knitting & Crocheting: The 4" x 4" knitting gauge is 8 sts and 13 rows with a 8 mm knitting needle and the 4" x 4" crochet gauge is 7 sc and 8 rows with an 8 mm crochet hook Ball Size: Each ball of this is #6 Super Bulky gauge yarn is 300g (10.5oz) and 201m (220yds) long