This foot pedal will work with many models, including:
Designer Diamond, Deluxe, Royale, Series-which are white
Designer Ruby, Deluxe, Royale Deluxe Series-which are white
Huskylock S25, which are white.
Pfaff Creative Sensation Series, which are black.
Pfaff Coverlock 4.0, Creative 4.0, Creative Performance, Creative Vision, which are Grey
and many other Husqvarna Viking and Pfaff models.
It has a retractable cord almost 5 ft long which makes it so easy to put everything away nice and neatly.
Viking foot pedal is white--Pfaff foot pedal is black--Grey pedal is Pfaff, but they are exactly the same foot pedal, so it doesn't matter the color.