Simply Silk Beading Thread Cord Size E Black 0.0128 Inch 0.325mm Spool 200 Yards for Stringing Weaving Knotting Silk Thread 3 ply for beading weaving and knoting 100% silk threads are considered essential for stringing fine gemstone beads and pearls. Thread is comparative to other renowned silk threads for jewelry-making The quality of Purely Silk??????? thread is comparative to other renowned silk threads for jewelry-making