Product review (4 stars): Not Perfect But a Serious Improvement
The Anti-Walk Silent Feet do significantly reduce noise on my washer/dryer combo, and have eliminated any movement. They have a dual-layer construction, with the lower part being a soft almost sticky material that absorbs vibration and holds the appliance in place, the upper part is a harder plastic cup which accepts the appliance's built-in "foot." Plan on re-balancing your appliance by adjusting its built-in feet till it is level after putting the Anti-walk Silent Feet under it for best results.