It was hard to get the right product, I did not know that there where different ball sizes, as I had only ever seen the 1.5" balls and thought they were standard.
I originally ordered in a mount though our part department and it was too small (1").
So I went on line found your site and ordered it myself.
Got there in the end, very happy.
I feel like putting more priority on listing by Size might be helpful. Cheers Ben