Sleek and shiny, Naked Sock is great for socks - and for sweaters, shawls, and much more! With zero wool content, this is a great choice for those allergic to animal fibers. 430m (470yds) and 100g (3.5oz). 93% Acrylic, 7% PBT. Machine wash, tumble dry. 5 balls/bag. The recommended knitting needle is 2.75mm (US size 2) = 32 sts x 42 rows = 10cm (4") in ST st. The recommended crochet hook is 3.5mm (US size E-4) = 26 sc x 36 rows = 10cm (4"). Remember to ALWAYS check tension/gauge before beginning your project.