Simply Silk Beading Thick Thread Cord Size FFF (0.016 Inch 0.42mm) Spool 92 Yards Compatible with Kumihimo Super Lon (Black) 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 Silk Thread 3 ply for beading weaving and knoting