Bernat Baby Blanket Big Ball Yarn Pitter Patter - This fast working yarn is perfect for super soft blankets, hats, booties, and more for baby. Weight Category: 6. Content: 100% polyester. Putup: 10.5oz/300g, 258yd/234m. Gauge: 8sx13r = 4in/10cm on size US11/8mm knitting needles. Recommended crochet hook size: L11/8mm. Dyelotted: we try but are not always able to match dyelots. Care: machine wash, tumble dry, do not bleach, do not iron, do not dry clean.