Product review (2 stars): I guess if you have a problem with vibration and noise being transmitted through your house these should work just fine.. They d
You should not use these with washers with vibration isolation feet (Like LG top loading).  It gives way to much give and causes the washer to become unbalanced.  I would assume these are intended with washers with solid adjustable feet (without rubber or other cushion material on feet).  I tried these due to a recommendation from the washer repair guy..  I guess he did not know what he was talking about..  I guess if you have a problem with vibration and noise being transmitted through your house these should work just fine..  They do seem to be a quality product.