Guaranteed to fit Elna sewing machine models:
ef72, 680 eXcellence (Plus), eXcellence 710, eXcellence 782, eXcellence 790PRO, eXcellence 792PRO, eXperience 530, eXperience 550, 860 eXpressive, eXpressive 830, 780 eXcellence (Plus), eXcellence 730PRO, eXpressive 850, eXpressive 920, 760 PRO eXcellence

Guaranteed to fit Janome sewing machine models:
5300QDC, Continental CM17, Continental M6, Continental M7, Continental M7 Quilter's Collector Series, DC2015, Horizon Memory Craft 14000, Horizon Memory Craft 15000, M7200, MC15000V3 Quilt Maker, Memory Craft 6650, Horizon Memory Craft 8900QCPSE, MC500E, Memory Craft 550E, MC6700P, Memory Craft 8200QCP SE, MC9410QC, MC9850, MC9850SE, Memory Craft 9900 Horizon, NQM2016, Skyline S3, Skyline S5, Skyline S7, Memory Craft 400E, Horizon Memory Craft 9400QCP, Memory Craft 9450QCP, Memory Craft 9480QCP, Sewist 780DC, Skyline S9

Guaranteed to fit Necchi sewing machine models:
EX100, EX30, EX60