Product review (3 stars): Didn't really work as I thought it should.
I needed only the press-fit "squarish" type of support stud, but you get one of each in the bag.  The part itself seems fine in that it matched perfectly the part I pulled out, but the problem that I had is that the new stud doesn't really lock into the hole which remains after removing the old stud.  There are no instructions with the parts, so I followed the guidance of a YouTube video, which has you twist out the old stud with vice grips - it worked fine.  I suppose that one could epoxy the part into place, but it's supposed to twist and lock...or maybe not.  Since there were no installation instructions with the part, I'm left in the dark (except YouTube).