For sale is a pair of BAL 28012 Locking Tire Chocks.
We used these chocks for about 2 months when we were in our rockwood full time. We've since bought a house and moved out of the rockwood, so the chocks are for sale.
These stop ALL forward/backward motion of the trailer, and can be locked to provide additional theft resistance for your trailer.
Included is a racheting wrench that makes installation quite easy.
Asking $60 shipped. These cost ~$105+tax at Camping World here:
Bal Products Div Of Norco Ind - X-Chock Tire Locking Chock, 2-Pack - Chocks & Levelers - Camping World
I can meet you in person if you happen to be in the Chattanooga or Huntsville area.
Please let me know if you have any questions.
pebooksforsale (at) gmail.com