simthread 10 essential colors metallic embroidery machine thread kit 500m(550y) for computerized embroidery and decorative sewing simthread 10 shiny essential colors - the most shine classic metallic colors, just bright like a diamond. bring these glittery colors to decorate your sewing and embroidery fabric cloths. metallic embroidery machine thread is widely used for the emblem and uniform, simply make them elegant and royal! let's decorate our christmas holiday!