Singer 630 and 640 series Touch & Sew Presser Bar Lifter Bar (thumb lift). (Singer #163583). Plus tension release lever #163231. Should work on all Singer Touch & Sew models Including 630E, 635E, 636E, 638E, 639J, 640E, 645E, 646E, 648E, 649E and maybe others.. Send back for refund if it fails on your machine. May be dirty but working genuine Singer part. Price includes shipping.