3,000 YD Cone, 100% Mercerized Cotton. Signature® Machine Quilting thread, designed for longarm quilting machines and enjoyed by many home sewers, is a high quality product that offers excellent sewability with high speed multi-directional designs, free motion and general sewing techniques. Be sure to try the new variegated color thread packaged on cones and ready wound performance bobbins - both made with the very popular 100% mercerized long-staple cotton.