Second review: Unfortunately, the double-dispenser fell on the fourth day with a roar of the tile wall. So the mitgeleferten pads do not have good, lasting adhesion. On the complete part no damage has occurred, but that was pure luck, I considered well find the donors in spite of everything, I'm going to fix it with Pattex assembly adhesive Special (for non-absorbent substrates) on the tiles, because I do not want to drill ,