Elgin Factory Balance Staff for 21/0s Grade 533, 535

Elgin Factory Balance Staff for 21/0s grade 533, 535 movements and perhaps several others as well, Elgin Factory No. 5388, Refill no. 533-264, new in envelope. See images for further details. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a barely adequate job of representing the item.