Product review (1 stars): Horrible - failure after weeks.
I purchased TWO sets of these to do two different dishwasher installs on granite. I followed all directions, including the cleaning of the granite, as well as using vices to hold the grabbers to the granite for 24 hours during the set-in period.

After 3 weeks, the first set disconnected from the granite, leaving the adhesive behind.

Then after 6 months, the second set disconnected from their granite as well, also leaving the adhesive behind.

Both dishwashers were used lightly (no more than 1x per day and 5x per week).

I solved the problem by purchasing the E-Z Dishwasher bracket for both applications, which has held true to be the best solution at $13. Look into this item (also carried here on amazon), as it will eliminate any headaches caused by these "grabbers"