Review on 2-Pack Rubber Jack Pads (Slotted Pucks) by Mission Automotive - Universal Standard-Size Adapter for Pinch Weld, Paint, and Metal Protection - Frame Rail Protector Puck/Pad Ensures Safety by Mike Sutherland

This is not the first pair I have bought. They do an excellent job of protecting your car from the hard metal of the jacks. I realized I needed more than two so I bought another pair. BENEFITS - A simple solution to the problem of using a jack or stand that won't fit in the seam ridge that most cars and trucks have at jack points. This is very important as many jacks (not supplied with the vehicle) damage the seam on most points of the jack making it problematic to use the jack supplied in the future but how often do you have to work if more than one wheel is available is needed? be lifted off the ground? CONS - Positioning can be tricky with anything but a jack. I used bushings at four points. I had to raise the jack, install the jacks, and then set them up before lowering the car onto the jacks. HEIGHT is a trick. If you raise the vehicle too high, the wheel chocks may fall out of position before you lower the vehicle. Too low and you won't be able to get them at all. You will need enough height for the seam on the vehicle to hold it in place. It's not too difficult, but it takes practice.