Guaranteed to fit Pfaff Sewing Machine Models:
Creative 2.0, Creative 3.0, Creative 4.0, Creative 4.5, Creative Performance, Creative Sensation, Creative Sensation Pro, Creative Vision 5.5, Expression 150, Expression 2.0, Expression 3.0, Expression 3.2, Expression 3.5, Expression 4.0, Expression 4.2, Expression 710, Performance 5.0, Quilt Expression 720

Guaranteed to fit Viking Sewing Machine Models:
100Q H Class, Designer Diamond, Designer Diamond Deluxe, Designer Diamond Royale, Designer Ruby, Designer Ruby deLuxe, Designer Ruby Royale, Eden Rose 250C, Opal 650, Opal 670, Sapphire 830, Sapphire 835, 855 Sapphire, 875 Sapphire, Sapphire 930, Sapphire 960Q, Designer Topaz 20, Designer Topaz 25, Designer Topaz 30, Designer Topaz 40, Designer Topaz 50, Tribute 140C