Guaranteed to fit Janome sewing machine models:
104, 106, 108, 110, 360, 380, 381, 405, 415, 419S, 423S, 4612 Travel Mate, 681D, 791FA, COMBI 10, HD-1000, L-108, L-352, L-372, L-373, L-392, L-393, L344 (344), LR1612, LR1616, LR1618, LR1622, NH1612, NH1616, NH1622, RX18, RX22, S-950, TB-12 Thread Banger

Guaranteed to fit Kenmore sewing machine models:
385.1011180, 385.1154180, 385.1155180, 385.1249180, 385.1249380, 385.1254180, 385.10111, 385.11551, 385.1274180, 385.12490, 385.12491, 385.12493, 385.12541, 385.1264180, 385.12741, 385.1284180

Guaranteed to fit Necchi sewing machine models:
HD22