It's a loosely twisted metallic designed to give a loosely woven effect in needlework. The core color range is variegated, going along with the origin of the word, which gives you interesting color effects. Most often used in needlepoint, bobbin work, counted thread (samplers), card making, knitting, weaving, embroidery, Temari, and cord making. It is meant to be used straight off the spool, as it comes, not separated.