Guaranteed to fit Babylock sewing machine models:
Aria BLAR, BLBA Ballad, BLCH Chorus, BLDY2 Destiny II, BLPY Spirit, Destiny BLDY, Ellegante 2 BLG2, Ellegante 2 Signature BLG2-NZ, Ellegante 3 BLG3, Ellegante BLG, BLSA3 Solaris Vision, Ellisimo BLSO, Ellisimo Gold BLSOG, Ellisimo Gold II BLSOG2, Espire BLSR, Journey BLJY, Solaris 2 BLSA2, Symphony BLSY, Unity BLTY

Guaranteed to fit Brother sewing machine models:
4500D Duetta, 4750D Duetta 2 (NV4750D), BP2100, BQ2500, BQ3100, DreamWeaver VQ3000, Innov-is 4000 (NV4000), Innov-is 4000D (NV4000D), Innov-is V3, Innov-is XP2 Luminaire 2, NX200, QC-1000, Quattro 2 (NV6700D), Quattro NV6000D, Stellaire Innov-is XE1, VE2200 Dream Maker, VQ2400 DreamCreator