Simplicity 1/4" Fusible Film 12yds 12 yards of clear 1/4" fusible film 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.