# 1
They are strong but I would not use them on a smooth surface because they can slip. On the other hand, on grass performed well and by accident I drove my Pathfinder on one of them and instead of breaking they got indented on the ground keeping the original shape.
Not as heavy duty as I hoped, but are exactly what I ordered.
What our customers are saying:
"I hope to install it in the next week or so. I have used your products before and I was very please then... as I am now. BIG THANKS, HENRY"