A thicker thread that fills in quickly for machine applique, quilting, decorative serging, machine crossstitch, also good for hand quilting, smocking, cross stitch, and punch needle embroidery. Machine Needle Size: 149016100. Use 30wt as top thread matched with 40wt in the bobbin. Available in 36 variegated and 18 multi color combinations. 30 wt. Rayon. 500yard spool.Purchase by the box of 3 spools.