Guaranteed to fit Elna sewing machine models:
ef72, eXcellence 710, eXcellence 790PRO, eXpressive 850

Guaranteed to fit Janome (Newhome) sewing machine models:
Continental M7 Professional, Continental M7 Quilter's Collector Series, Memory Craft 6650, Memory Craft 9450QCP, Memory Craft 9850 (MC9850), MC9850SE