Review on XSTRAP Wheel Chock Non Slip Base - Ideal Chocks for RVs and Trailers - 2 Pack by William Burnett

We use them on our tandem axle caravan. So far they've done well. We had one that shattered like glass in sub-zero temperatures, so use caution when using it in extreme temperatures. They are wide enough for standard RV tires and have enough grip to prevent them from slipping out from under the tire under load. Happy with them so far but I may add a small rope to use as a train.