Gudebrod waxed bobbin thread is produced and tested in the USA by an American family-owned and operated company. This is 100% made of polyester which is sturdy and durable and also has multiple purposes for sewing, quilting, beading, jewelry making and crafting. This colorful bobbin thread is also perfect for making dream catchers, stitching leather, native crafts, and many other uses requiring a strong thread. There is a variety of colors for different craft projects. Details:Available in multiple colors0.015" (0.38mm)500 ft.3-ply70lb.Waxed polyester