Replace Your Bobbin Case with a True-to-Vintage Replica The first replica bobbin case built to the standards of a vintage original—tested in our shop and packed with the stitch sample to prove it. Drop in your new bobbin case, thread it up, and start sewing—you'll love the smooth, consistent seams! Your Featherweight's stitch is only as smooth as the bobbin case beneath it. The vintage originals were machined to exquisitely tight tolerances—and for decades, the replicas on the market were close, but not quite a match. So we built ours to those same original specs. Know It Works Before You Install It And before any bobbin case leaves our shop, we test it on a Featherweight ourselves. Then we wind a bobbin, stitch a test sample, and pack both into your order—so when your package arrives, you can see the stitches your new bobbin case made before you've even threaded your machine. That's our signature guarantee. Fits Every Featherweight You Own Your new Featherweight Shop bobbin case drops right into every Featherweight in the family: your black 221, your white 221, your tan 221, your 222 Free-Arm Featherweight, and even your Singer 301. IMPORTANT: The Featherweight Shop Bobbin Case will fit and work properly as long as the Singer Featherweight (or Singer 301) has its original vintage hook assembly parts and a high-quality bobbin is used. The bobbins we carry in the bobbin roll work perfectly and are guaranteed. Even a vintage original bobbin will be suitable with this bobbin case. The Featherweight Shop bobbin cases have been given a factory impression of 45751TFS. The 45751 indicates it is a replica and the TFS indicates that it was manufactured for The Featherweight Shop.
