GÜTERMANN Natural Cotton 50 is a mercerised cotton sewing thread for quilting, patchwork, and clean seams on most woven fabrics and craft materials. This 100 m (109 yd) spool in Jay Blue is a 50-weight, 3-ply thread that sews smoothly by hand or machine for piecing, appliqué, and decorative topstitching. Use a universal needle in the maker’s recommended range and test tension on scraps to help keep stitches even and reduce thread breakage.