1 SET~PFAFF INDUSTRIAL WALKING FOOT DOUBLE TOE WELTING FOOT~with teeth~#42519x20T~size 5/32"~4.0mm ONE SET PER ORDER PFAFF WALKING FOOT DOUBLE TOE WELTING FOOT WITH TEETH #42519X20T USED on Pfaff 145 / 335 / 545 / 1245 / 1425 / 1445 Class PFAFF Walking Foot Machines WE ALSO CARRY SIZE: 1/8", 5/32, 3/16, 1/4", 5/16", 3/8".