COATS YARN-Red Heart Heads Up. This bulky weight yarn is perfect for all knit and crochet projects. Weight category: 5. Content: 80% acrylic/20% wool. Putup: 3.5oz/100g, 106yd/97m. Gauge: 13sx18r = 4in/10.5cm on size US10.5/6.5mm knitting needles. Suggested crochet hook size K10.5/6.5mm. Dyelotted: we try but are not always able to match dyelots. Care: machine wash, tumble dry, do not bleach, do not iron, dry clean with P solvents only. Comes in a variety of colors. Each sold separately. Imported.