Unibody vehicles can't be safely lifted with conventional floor jacks - says who? With this Floor Jack Pad Adapter you can safely lift Unibody vehicles with a regular floor jack, without damaging pinch welds, mis-aligning body panels, or damaging suspension components. Adapter's U-channel lifts vehicles at the correct factory-designated lift points. To use, simply remove the saddle insert from the floor jack and insert the pad adapter. Fits jack saddles with 5/8in. or 1 1/8in. holes (with bushing included).