Sajou No. 180- Black PERLE SILK THREAD- Fil au Chinois Sajou. Perle pure silk thread. ONE SPOOL. N °30 Length of thread on spool: 20m – 100% silk. Diameter of the thread is 0.526mm. High quality hand embroidery threads for lunéville, tambour beading and embroidery, and hand sewing. Color: Black/ No. 180 Made in France