Guaranteed to fit Juki Sewing Machine Models:
DDL-5530, DDL-5550, DDL-5550N, DDL-555-4, DLN-415-4

Guaranteed to fit Singer Sewing Machine Models:
107G235, 107W1, 107W3, 107W5, 107W14, 107W15, 107W17, 107W35, 107W50, 107W100, 107W102, 108U20, 108U30, 108W20, 111W, 111W106, 111W116, 111W117, 111W151, 111W152, 111W153, 111W155, 112W115, 112W137, 112W140, 112W145, 112W146, 138W102, 143W18, 153W104, 16-137, 16-141, 16-188, 17W15, 19W2, 19W3, 19W4, 241, 281-183, 31-15, 31-19, 31-20, 31-47, 31-63, 47W201, 47W61, 47W62, 47W66, 47W70, 51W54, 51W55, 51W56, 51W57, 52W21, 52W22, 52W31