Guaranteed to fit Brother Serger Models:
1034D, 1034DAV, 1134DW, 526, 526D, 546, 546D, 626D, 634D, 640D, 834DP, 920D, 925D, 929D, 934D, 935D, PL1050, PL1500, PL1600, PL2000

Guaranteed to fit Husqvarna Viking Serger Models:
535D

Guaranteed to fit White Serger Models:
1800, 1900, 634D, 834DW