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.