Hemline H1003.NY | Navy Strong Washable Darning Wool | 20m hemline superior quality darning wool very strong yarn perfect for darning socks pullovers and many other items washable - made from 30% natural wool &amp; 70% polyester acrylic with each spool containing 20m / 22yd of wool available in full range of 5 colours - white brown dark grey black &amp; navy please see store for full range