This hi-tech braided bead thread is much stronger than silk-based threads, more resistant to fraying and doesn't need to be stretched before using. It is fabricated from a man-made fiber called "Spectra". The thread is pre-waxed, too! It is also stronger than silk - the break rating on this diameter is 20 pounds; .009 inches is about 0.23mm.
Pure white color, .009 inch diameter, sold by the 28 yard Spool.