Product review (3 stars): Not good for a washer, great for a dryer.
Our Washer and dryer sit in a recessed area of the floor (for accidental drainage) but this means the drawers on the riser cabinets won't open. I needed a way to raise the entire unit 1 inch without extending the feet of the machine fully, which causes it ti shake. I purchased a set of these for both the washer and dryer and installed them and leveled the machines. They work very well at quieting the dryer and raise both units enough to allow the drawers to be opened, but are too soft for the washer. Even though the machine is leveled, and it is sitting on a concrete floor, these pads allow the machine to shake worse that it did on the fully extended feet. The machine no shakes so violently that it walks (moved 4 inches during one load) and makes a lot of noise. I removed the pads and set the machine back on the floor and the shaking/ walking stopped. Conclusion: These are great under the dryer but won't work on the washer.