This fits my Hi Lift perfectly and really spreads out the surface area making it easier to lift my truck or trailer. I also use it on my 10k trailer jack. It keeps it from sinking into the mud or snow. There is a built in serrated edge to help clear out gravel and debris from the area where the jack will go. I haven't used it for that yet but I see no reason why it wouldnt work well. The plastic is very heavy duty and hasn't shown any signs of failure in the half dozen times Ive used it so far. All in all a great addition to your High Lift accessory kit for a reasonable price.