GÜTERMANN Rayon 40 is a universal machine-embroidery thread with a smooth surface and bright shine for detailed motifs and decorative stitching. This Silver Shine spool holds 200 m (about 218 yd) of 100% viscose (rayon) thread suited to machine embroidery, fine ornamental stitches, and decorative machine quilting. Use an embroidery needle in the 70–90 range and stitch a small test first to confirm tension and coverage on your fabric.