4" X 5yd Royal Cast-Over Wired Satin Ribbon - Single faced satin ribbon with heavy metal wire sewn (cast-over) onto the edges to give it more stability for shaping. Made of fine satin polyester thread. Available in a selection of colors and widths. We also carry woven-in satin ribbon which has a thinner wire and a more natural finished edge. Made of 100% Polyester.Cast-Over Wired Satin Ribbons can have a slight variance in color due to the coloring process.