From the manufacturer:
Patons Classic Wool Worsted really is a classic yarn. This 100% wool yarn is worsted weight, making it incredibly versatile for so many different projects! Try Classic Wool Worsted out when you start your next sweater or blanket pattern and we think you'll fall in love. Available in a wide shade range, any knit or crochet project made in this yarn will be an heirloom! Keep your warm, woolly projects looking beautiful by handwashing them and laying them flat to dry, so everything you make can last a lifetime.
-100% wool
-3.5oz (100g) 210yd
-4"=20 stitches on size 7 needles
-Suggested crochet hook: H8
-Dyelotted
-Hand wash, dry flat