... various purpose especially as embroidery thread. ST-TYPE Polyester filament yarn round covered with M type metallic yarn (12micro 1/69")at ... ,blue,gold,balck...TYPECONTENTLENGTH/KGSTANDARDCONESN.W.G.W.CARTON SIZEST(L,B,MS)12mic,1/69,35%metallized polyester monofilament,65 ... .570*37*39Gold,38000 m±3%250g80202676*37*37 st-type metallic yarn