Hinged Combination Adjustable Presser Foot For Low Shank Sewing Machines. Foot # 551 Combination : Hinged Zipper, Cording and Straight Stitch. You can sew on either side of the foot or in the center for straight stitch without having to remove the foot from the machine. Simply loosen the spring loaded screw in the rear and move the foot to any position that is best suited for your project. Fits low shank machines from following makers : Alphasew, Brother, Consew, Elna, Janome (New Home), Jaguar, Juki, Mammylock, Melco, Necchi, New Home, Pfaff, Poem, Rex, Riccar, Simplicity, Singer, Viking, White, Yamata and many more....