Lower Knife | Baby Lock
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Guaranteed to fit Babylock Serger Models:
BL402 Protege, BL550, BL5370, BL5370ED
Guaranteed to fit Riccar Serger Models:
RL739DE, RL749L
Guaranteed to fit Simplicity Serger Models:
SL4380ED, SL4390ED, SL4380BH, SL4690L