Black Serger Thread, All-Purpose Thread for Sewing, Polyester, 4 Cones of 3000 Yards Each Spool for Sewing Machine. Serger Thread Luxury Material: 100% Spun Polyester Thread for Sewing 40s/2 (Tex27), Owning The Strength of Polyester With A Soft Touch And Matte Look of Cotton.
eBay