Product review (3 stars): Helps but could be better.
I purchased these to reduce vibrations from my top load washer.  I just moved into a new place and after leveling the machine I still could feel the shaking throughout the house.  After putting the pads under the feet the vibrations aren't as bad but are definitely noticeable.  I caught these on sale for $4 with shipping, so for the price I can't argue with the product making a slight difference.