Product review (5 stars): Great product!  Completely stopped my front load washer from walking.
Purchased these to hopefully eliminate the frequent intense vibration and walking of my front load washer. My washer is on a tile floor in a laundry room above a crawl space (not a slab foundation).  Washer is 10 yrs old, and I've lived in 3 different houses with it; in only one house was it on a concrete slab (in garage).  When on the concrete slab, it had the least vibration and walking, though still did move on occassion.  Since installing these anti-walk feet, the washer does still vibrate significantly during some loads, but it has not walked/moved at all, which was my biggest concern.  Wished I had purchased these years ago!  I also installed them on the dryer but only to keep washer and dryer at same height; not required for vibration or movement. Installed these in December 2015.