This is a used and in good working condition drive flange from a '94-97 Miata differential.  Fits all manual and auto trans differentials from '94-97 and later NB diffs from differentials from '99-05 (only for use when you are swapping axles to the '94-97 type).   

I have cleaned this unit to look as it does in the photos.  There is some light rust on the exposed surfaces.  Bolt threads are in good shape.  Dust flange and shaft and splines are in good shape.  The photos show a single unit, and I have at least 13 available.  You can expect the other units to be in the same basic condition.  Some will have a bit more rust and some will have less.  Each will fit and function just fine.

Discount for multiple units.  

$10 shipping in the USA and $40 worldwide.