Imagine you’re off-roading and you have the sudden need to change a tire on uneven terrain filled with slopes, jagged rocks, or squishy, muddy ground. For optimal safety, you're going to need additional stability and floatation to prevent your bottle jack system from sinking and sliding! By adding this 8-inch x 7-inch Universal Bottle Jack Base, you can greatly reduce ground loading and ensure the jack remains fixed in place. The Universal Bottle Jack Base comes with washer and tab assemblies that allow you to affix almost any bottle jack to it, whether it's of 6, 8, 12, or even 20-ton capacity!