Material: Made of polyester and rayon, less breakage and wear, very durable, strong and environmentally friendly. Washable and Anti Tarnish: Your embroidery design can be cleaned by hand and machine. However, we recommend cleaning them with 95 C water for 15 minutes, avoiding dry friction. Ideal length: Each spool is 3600m in length and comes in two gold and silver rolls, it is of good quality and reasonably priced for metal embroidery machines. Versatile: This thread cone can be used for manual sewing machines as well as for sewing machines, bobbins and threads. Wide Range of Uses: Very suitable for embroidery, doll / shoe sewing, cross stitch, crochet, plain sewing, needlework, tailoring or other handicrafts, also very suitable for hand embroidery, suitable for all types of clothing, shoes and other decorative embroidery.