Aurifil’s 100% Cotton 12 wt/2 ply thread is the heaviest weight thread that Aurifil offers and is perfect for hand appliqué, hand embroidery, hand quilting, cross stitch, embellishment, handmade lace, machine appliqué, blanket stitch, machine embroidery (especially for designs that use a longer stitch length), machine art quilting, Sashiko, redwork, lower looper serging, and long arm quilting. *Product cannot to be sold on any 3rd Party site such as Amazon, Etsy, Ebay or any other 3rd Party sites, unless approved by the manufacturer.*