Hip replacement ball joint

Description

This is a listing for one individual hip replacement ball joint stem.  Not to be used for actual operation!  These are for display use only but are indeed the real thing.  They appear to be made out of titanium or some other very light material.   These were given to me by a tenant that liquidated medical and science laboratory equipment but owed me back rent.  Probably cost thousands of dollars when made, but maybe someone would like one as a conversation piece or desk display model?
I have lots of these items with each one being slightly different in size and shape.  The auction is for just one piece.  If you have a specific one that you want, let me know.  Otherwise I will just select one at random from the pile.