Fits the following models:

Babylock:
BL137A, BL137A2, BL200A, BLDC2, BLMR, BLMY, BLQC2, BLR2, BLR3

Brother:
HE240, LB6770, LB6800PRW, NV1200, NV1250D, NV-350SE, NV-400, NV400SE, NV-600, NV-750E, NV-780D, NV-900, NV900D, NV950D, NX450, NX450Q, NX-650, NX-800, PE450, PE500, PE540D, PE700, PE700II, PE750D, PE770, PE780D, SB7050E, SE-350, SE-400