Expandable Wheel Chocks

[Karl]

I use the BAL expandable chocks, the ones that use a wrench to expand them. It dampens the fore/aft movement somewhat, and I am convinced the expandable ones are the best for keeping the rig from rolling backward or forward if parked on an incline/decline. There is still some movement of the trailer when we walk around, but it is minimal if we have the front tripod set up also.

Of course there are times at our age "rocking" the rig is still possible.