Product review (5 stars): I am happy I did this - one small victory at a ...
I can't believe the high price, but they did stop the walking for my Bosch washer and dryer.

These can be a challenge to install for side by side units in a niche.  This is how I did it:

1. With the dryer removed, I pulled the washer forward against my feet to tilt the back off the floor.  DW then maneuvered two pads under the rear feet with a broom while laying on the floor.

2. Then from the from the of the washer, I rocked it back on the the rear feet/pads while she placed the pads under the front feet.

At this point, repeat as needed to make sure the washer is where you want it, because it ain't gonna move any more.

3. I then slid the dryer in place without pads. While I rocked it onto its back legs, DW placed a large thick book under the center of the dryer, using a broom.  I then let the dryer down and all four feet were off the ground, as planned.

4.  We maneuvered the pads to the rear feet with a broom

5.  I rocked the machine onto its back feet while DW removed the book with the broom

6.  I lowered the front legs of the dryer onto the pads as my wife positioned them in place.

Result: Washer no longer walks (AT ALL) and is MUCH quieter, but still makes a big racket, but now one level below bone rattling.  I am happy I did this - one small victory at a time.