Singer 15-91 repair/ replacement parts. Singer class 15 bobbin case #125291 with bobbin #2518 and hook #125292. Plus race assembly consisting of: shuttle race cap #125304, bobbin case position plate #125290, shuttle race back spring #125302, shuttle race back #125299 and mounting screws #662 and spring thumb screw. Complete set up for Singer 15-91 models. Price includes shipping to lower 48, return for refund if fails on your restoration.