Bernat-Baby Blanket Twists Big Ball Yarn. This yarn is perfect for all of your baby projects. Weight category: 6. Content: 100% Polyester. Putup: 10.5oz/300g, 220yd/201m. Gauge: 8sx13r = 4in/10cm on size US11/8mm knitting needles. Suggested crochet hook size US L/8mm. Dyelotted: we try but are not always able to match dyelots. Care: machine wash, machine dry, do not bleach, do not iron, do not dry clean. Comes in a variety of colors. Each sold separately. Imported.