Boye Double Ended Yarn & Tapestry Flat Needle Threader for Needlepoint & Tapestry Yarn For threading needlepoint and tapestry yarn needles quickly and easily. Get some for your church quilt guild. Great for tying quilts. Boye Steel Needle Threader is a metal yarn threader with a large hook at one end and a smaller hook at the other end. A must for every quilter and seamstress! Double hooks make for easy threading on any needle eye. Stainless Steel.