Inside welting/cording foot 5.0mm  'C' for Industrial walking foot Pfaff machine.  Old stock,  used and/or near new, original German manufactured. see pictures and satisfy yourself to condition and the use on your machine. Ask questions before purchase.  These are NOT made in China!!!  They were made in Germany and are Vintage.  may have surface rust and/or grinder remodeling (have the German manufacturing marks and manufacturing part number) Should fit:  Pfaff Sewing Machine Models: