KREINIK-Kreinik Japan threads are synthetic; non-tarnishing gimps available in gold; silver and copper. These threads are excellent for fine stitching; outlining; couching or laid work. The sheen is very bright; clean and smooth to offer the look of real gold; silver and copper. The #5 & #7 thread is skeined. Japan Thread is recommended for needlepoint; cross-stitch; surface embroidery; smocking; quilting and couching. Japan Thread is dry cleanable only. 11 yard skein. Made in USA.