Red Heart Sport Yarn. This is a traditional yarn with a kid-friendly bright color range that has excellent wash performance and is ideal for sweaters, lightweight throws and more. Weight Category: 3, 100% acrylic, 2.5oz/70g, 165yd/150m. Gauge: Knit: 21s x 28r = 4in/10cm on size 6/4mm needles, Crochet: 17sc x 18r = 4in/10cm with size H8/5mm hook. Care: machine wash (max.temp 104F/40C), tumble dry, do not bleach, do not iron, dry cleanable. Made in USA.