Our DK Weight yarns consist of 85/15% Merino Nylon giving you the softness of extra fine merino and the extra durability produced with a bit of added nylon! , The main factor determining the quality of merino wool is its softness which depends upon the fineness of the fibres. Our DK Weight Yarns Measure 225m (246yds) per 100g Recommended Needle Size: 3.5 - 4.5mm (US 4 - 7) needles Gauge (stocking stitch): 22 sts x 30 rows over 10cm/4 inches on 4mm (US 6) needles Recommended Crochet Hook Size: 4.5-5.5mm (US 7 - I-9) Suggested gauge: 12-17 sc = 10cm/4 inches