COATS & CLARK-Red Heart Sweet Baby. Sweet Baby is a worsted weight 2-ply twist yarn. The effect is like a marl or ragg but in soft baby shades with the added fun of the self-striping effect. The self-stripe effect creates great results with knit or crochet. Weight category: 4; 100% acrylic; 3.5oz/100g; 218yd/254m. Gauge: 18 st x 22r = 4in/10cm on size 7/4.5mm knitting needles and 16sc x 18r = 4in/10cm on size I9/5.5mm crochet hook. Care: machine wash cold; tumble dry; do not iron; dry cleanable. Imported.