Lion Brand-24/7 Cotton Yarn. A reliable yarn for all your apparel projects! Worsted Weight. Content: 100% mercerized cotton. 3.5oz/100g, approximately 186yd/170m. Gauge: 20sx28r = 4in/10cm on size 6/4mm knitting needles. Suggested crochet hook size G/4mm. Care: machine washable and dryable, dry cleanable with P solvents only, iron safe, do not bleach.