Each shuttle contains 3 yards of Memory Thread. 100% colorfast & fade resistant with soft fiber wrapped copper wire. For use on embellishing needlepoint, embroidery, cross stitch and quilting. Memory Thread is great for paper crafting, jewelry, all types of needlework and craft projects. Memory Thread is colorfast, fade resistant and acid free. The fiber is hand-wrapped on a recyclable shuttle to keep the thread tidy and ready to use. Notches on the shuttle hold the thread in place once in use. You can reuse the shuttle for other threads once you use all of your Memory Thread and the shuttles can be placed on a metal ring to keep all of your threads for a project together.