Kreinik Japan Threads are synthetic, non-tarnishing gimps available that give the appearance of stitching with real metals. Use them anywhere, from Asian embroidery to charted needlepoint, painted canvas, samplers, ecclesiastical, and other surface embroidery. Stitch with Japan #7 or couch it (tack it on the surface) using a thinner thread. You can use these threads to couch Kreinik 3/8" Trim when you want the couching thread to be invisible. The colors are perfect matches.