DecoPro 10 Yard Value Pack of Medium 5/16" Basic Trim Lip Cord Style# 0516S Color: White - A1 (30 Ft / 9.1 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