Poems Sock is a 75% wool / 25% nylon roving sock yarn featuring beautiful shades which bleand easily from one colour to the next. Available in bright, medium, and somber shades, Poims Sock is not just for socks --- try it for mittens, hats, and lace projects too! 420m (459yds) and 100g (3.5oz). 75% Superwash Wool, 25% Nylon. Machine wash, dry flat. 5 balls/bag. The recommended knitting needle is 2.75mm (US size 2) = 28 sts x 36 rows = 10cm (4") in ST st. The recommended crochet hook is 3.75mm (US size F-5) = 23 sc x 30 rows = 10cm (4"). Remember to ALWAYS check tension/gauge before beginning your project.