Red Heart Classic Yarn, Tangerine Classic yarn is a traditional acrylic yarn 100Percent acrylic Recommended knit needle size: us 8 (5mm) for gauge: 17 sets x 23 rows= 4 (10 cm) Crochet hook: i-9 (5 mm) for 12 sec x 15 rows = 4'' (10cm) Meter age/yardage: 134M/146Yds