(Old Article #: 250) Uses: General purpose, seams, construction, machine and hand sewing, ornamental stitches. Benefits: Light resistant, colorfast, brilliant colors, lustrous sheen. Recommended Needle Size: 70/10 and 90/14 Suitable for all fabrics, for hand and machine sewing, it combines the excellent sewing properties of silk with the strength and durability in the seam of polyester. No thick and thin areas.