Simplicity Deluxe 4/32" Piping Cord 12 yds 12 yards of 4/32 inch piping cord 100% Cotton Ideally used with the Simplicity Deluxe Bias and Piping Machine. Cover cording with your own fabric to create custom trims! Cording, fabric and our proprietary fusible web are threaded into the machine, pass through a guide, then under a heating element to melt the web, securing the cording inside the fabric.