Coats and Clark™ Professional Machine Embroidery Thread is has a lustrous sheen for embellishing items with decorative stitching or embroidery. A 40 wt, trilobal polyester, it can be used for digitized designs on embroidery and conventional sewing machines. The 4000 yard high volume king spool provides equals 6.5 conventional spools meaning fewer starts and stops when embroidering a design. It is machine washable and dryable and colorfast even with using chlorine bleach.