3.0 mm outside Cording/welting foot For walking foot industrial machine.   smooth bottom 4.69 mm wide between the forks.  Old stock,  used original German manufactured. ( Pictures are representative) ask to see actual pictures of set and satisfy yourself to the  appearance and use on your machine. Ask questions before purchase.  These are NOT made in China!!!  They were made in Germany and are Vintage. (they don't have the Pfaff name stamp but do have the german manufacturing stamps and product number ) Should fit:  Pfaff Sewing Machine Models: