Product review (5 stars): Keeps Dishwasher Aligned Perfectly
This product fits perfectly in between my cabinets and underneath my quartz countertop and holds my dishwasher in place perfectly.  It was easy to install and I was able to get my dishwasher in the perfect position so that the door aligns with the outside of the cabinets.

I installed it myself before the countertop people came and all they did was put some caulking over the top of it (to stick to the stone and to absorb noise) and it works perfectly.  It's a lifesaver if you are trying to keep your dishwasher in one position and avoid movement.