Product details:

Hi-Lift's Off Road BaseDon't even think of leaving home with out it The Off Road Base is one of the most important items you will ever need to change a tire on the trail. Or replace a pesky front axle u-joint. The base spreads the load under the jack, helping to prevent the jack from sinking into the ground or shifting from side to side while under load. Just like a wide tire, it also increases your jack's foot print and contact patch to prevent sliding. I'm a serious Jeeper and this item is one of the most essential safety items on any trail, anywhere.