I bought these and only ran them for about 2 months before deciding to go a different route. These are high quality spacer/adapters not the cheap ones. I bought them from Just Differentials:
I am asking $300 shipped. I am not looking for any trades at this time...Unless you want to trade a new Google Nexus 7 tablet, ipad, etc...
Thanks for looking let make a deal!
EDIT: This is for a set (4).