Guaranteed to fit Bernette serger models:
B37, B38, B44 Funlock, Deco 340 Plus

Guaranteed to fit Elna serger models:
Easy Cover, ef1, ef72, eXcellence 790PRO, eXcellence 792PRO, eXtend 864 Air

Guaranteed to fit Janome sewing machine models:
1000CP, 1000CPX, 1110DX, 1110DX Pro, 1600P, 1600P-DB, 1600P-DBX, 1600P-QC, 2000CPX CoverPro, 203, 234D, 434DR, 634D, 644D, 734D, 744D, 888 COMPULOCK, 900CP, AT2000D, COMBI-DX502, Continental CM17, Continental M6, Continental M7, Continental M7 Quilter's Collector Series, CoverPro 3000P, HD9, HD9BE, HF504D, ML303, MC14000 Horizon, MC15000 Horizon, MC15000V3, MC6650

Alternate Part Numbers: 5020405164