Product review (5 stars): Perfect fix
Works like a charm to keep the washer quiet and in place.  I have a front load Frigidaire on the second floor that would move 6-12" with every load.  It was leveled, too.  With these suckers, it hasn't moved an inch since. Just clean the floor and stick 'em underneath.  Mine has a pedestal, so it obviously works under those, too.