Guaranteed to fit Bernina Serger Machine Models:
800

Guaranteed to fit Brother Serger Machine Models:
1034D, 1034DAV, 1134DW, 523N, 525N, 526, 526D, 546, 546D, 626D, 634D, 640D, 730DE, 760DE, 834DP, 920D, 925D, 929D, 934D, 935D, BAS-311A, BAS-705, LH4-B814 Mark II, LH4-B817, PL1050, PL2100

Guaranteed to fit Husqvarna Viking Serger Models:
535D, 560ED, 900, 940, 945, 950, 960, 980, 990