Product review (1 stars): Did not work at all!
Was excited about them working as discribed, but they actually cased our washing machine to vibrate and rock around on spin.  As soon as I removed them, the machine worked fine on spin - I made no other changes other than remove the pads.  Maybe some machines don't work with these pads depending on how the feet are installed on themachine.  Our machine has spring action on the back feet.  I am returning them as they cost a lot for what you get.