?? 70% Merino Extrafine (Tasmanian Wool), 30% Yak ? ? 16 Microns? 546 yards per 100 gram hank? 3-3.5 mm (approx. US 2-4) needles? Approx. 7-7.5 sts per inchProduct contains: 1 bag of 5(100g) hanks of yarn.