Red Heart Boutique Changes Yarn. With six yarns in one, this appealing textured yarn has ample yardage to make a one-ball scarf. The six different yarns are a combination of texture, metallic, and brushed in tonal colorations. Changes is available in many shades and ideal for accessories as well as garments. Weight category: 5, 87% acrylic/12% wool/1% other fibers, 3.5oz/100g, 187yd/171m. Gauge: 15st x 20r = 4in/10cm on size US10/6mm knitting needles. 14sc x 16r = 4in/10cm on size K10.5/6.5mm crochet hook. Dyelotted: we try but are not always able to match dyelots. Care: machine wash cold, dry flat, do not bleach, do not iron, dry clean with P solvent only.