Ultra‑fine 100% nylon monofilament for nearly invisible stitching on light‑coloured fabrics. Ideal for machine quilting in the ditch, attaching trims and subtle appliqué where thread should disappear. Fine diameter feeds smoothly for balanced tension and minimal bulk in seams. 457 m (500 yd) spool suits piecing, crafts and garment touch‑ups when precision and low visibility are important. Suitable for home and classroom use; keep with core sewing notions for consistent results.