Caron One Pound Yarn - The perfect medium weight yarn for all your knitting and crocheting projects! Weight category: 4. Content: 100% Acrylic. Putup: 16oz/453.6g, 812yds/742m. Gauge: 16stx20r = 4in/10cm on size US8/5mm needles. Suggested crochet hook size H8/5mm. 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. Comes in a variety of colors. Each sold separately. Made in USA.