4-ply heavy metallic thread. This thread runs well in the bobbin. It can be used for bobbin work, thread painting, decorative stitches, free motion quilting, hand embroidery, cord making, couching, tassels, fringes and bead work. 180m/spool Hint: The ultimate thread pairing is a metallic thread and Invisifil (sold separately) as a carrier thread. Once you start seeing the results this pairing produces, you won't want to use anything else!