Lang Yarns Merino 120 - The finest Australian merino wool is used for Lang Yarns Merino 120, spun with the expertise that Lang has developed since 1867. Knits up on US4 (3.5mm) - US7 (4.5mm) needles, it is perfect for your DK projects and the color palette is breathtakingly gorgeous! Solids and brights, with some melange shades thrown in - a rainbow of merino DK yarn! . SKU: 34.