Bestfit Balance Staffs (2) for Standard caliber 191 movements - New

TWO Bestfit System 100 Balance Staffs #2376 for Standard caliber 191 shock movements and perhaps others as well, new in open envelope. See images for further details. Note someone has also indicated these are PUW 1363 compatible which I  have not yet been able to verify. These originally came packaged as 1/4 doz but there are only two in the envelope.  I specialize in hard to find parts so I'll usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.