I have one of these suction-cup handles from many years ago, and it is still going strong. I recently ordered another one since I needed it for an additional ruler. It did not disappoint. It works great; the little suction cups work perfectly. One usage note: if your suction cups go down on the ruler and they are touching each other, this may affect the grip. All you have to do is use your finger to just separate them a tiny bit and make sure they go down on the ruler smoothly. If your suction cups come warped or damaged, report it to Amazon immediately and they will remedy your problem. As long as this ruler handle is not damaged, it works GREAT. I put mine on the ruler about a week ago and have used it frequently and the handle has not budged.