Quality vintage ribbon has woven, not printed polka dot pattern as shown in the pictures.
Ribbon is woven with rayon fibers. This is a sturdy woven ribbon, probably originally woven for hat bands, decorations and bows. Ribbon is available in the 2 colors as shown and all have contrasting woven edges that match the woven dots.
Ribbon trim measures about 1 inch in width and is sold by the yard.