Use KingStar as any other high-quality embroidery thread. No need for a special needle or slower running speeds. KingStar Metallic threads are colorfast and will not fade on your garment or project. KingStar Metallics have a polyester core and are wrapped in rice paper with a metallic finish. The high-quality thread doesn't kink as it unwinds from the spool and runs smoothly through the thread pre-tensioners, resulting in fewer thread breaks and higher quality embroidery. Size: 40 weight Length: 1000 meters