Content: 100% polyester, Care: This chunky yarn can be used for hand knitting, crocheting, amigurumi and craft projects! It is easy to care for, simply machine wash and dry all crafted items. Knitting Gauge: 4" x 4" (10 cm x 10 cm) 2.5 sts and 3.5 rows with a 25 mm knitting needle Crochet Gauge: 4" x 4" (10 cm x 10 cm) 2 sc and 2 rows with a 25 mm crochet hook Ball Size: Each ball of this #7 Jumbo Gauge Yarn is 600g (21.2 oz) and 66m (72 yd) long.