10 Yard Value Pack of Medium 5/16" Basic Trim Lip Cord, Style# 0516SPK Color: DARK NAVY BLUE - J3 (30 Feet / 9.5 Meters) Solid Color Cording with Lip (Flange) A medium 5/16" thick cording with a sheen The flange (or lip) on this cord is tucked into the seam during the construction process of sewing Diameter: 8mm (5/16") Made from Polyester Yarn with a Cotton Filler