1 set of Brand New High Quality Knife Blade: 

1 Pcs Upper Knife Blade #1250014229 Alternate Part Numbers: 141000009, 4155186-01 (415 51 86-01), 1650004229, + 1 Pcs Lower Knife blade #1250004237 Alternate Part Numbers: 4155084-01 (415 50 84-01), 1250004-237

 fit Husqvarna Viking Serger Models:

HuskyLock 901, 460D 

 fit Pfaff Serger Models:

4764 

 fit Toyota Serger Models:

6300, 6600 

 fit White Serger Models:

1700, 1800, 1900, 234DE, 634D, 634DE, 7234, 7934DW, 834DW, SL234D, SL34, SL34D, SL3400