Ready to dye Wool/Nylon sock weight yarn. 400m (437yds) and 100g (3.5oz). 75% Wool, 25% Nylon. Machine wash gentle, dry flat. 5 hanks/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.