Rayon Satin cord is a shimmery cord that reflect lights. It is soft and slippery to touch. It is a woven cord with a center core. Originally it was made of silk. Now it is made either with rayon over a cotton center. Thius is the cord made inthe USA. It can be used as a cord for necklaces, for stringing beads with large holes and for Chinese ornamental knotting or as a center core for hand braids, beaded kumihimo, or bead crochet tubular ropes. When used as a center core, it can be used singly or in multiples.
Personal Note - I have used satin cords for many years as core or center for hand braids and for beaded kumihimo. For thicker braids, I often use multiple cords as it gives me the option to pull one of the cords out when the braid is finished if I find the result a bit stiff.