Here is what a SmartJack looks like up close an personal, while this isn't the whole SmartJack, it certainly shows most of it. This shows the base and most of the shaft. The base is one of the most important parts, because it is where all the weight is transferred to. A one foot square concrete base is a great base for SmartJacks, as it allows the weight to be spread out in what is called a "bulb of significant stress influence". This basically means that the weight is distributed evenly and distributed enough to provide the needed support.