I needed to remove a large mirror (4ft tall by 10 ft long) from the wall of my bathroom and these seemed to be just what I needed at a decent price. I decided to order 3 even though I only needed 2 because for under $9.00 it wasn't worth the hassle of trying to return if I had a problem with 1. Come moving day I was glad I did order the extra. 1 of these overly large suction cups just wouldn't stay locked on the mirror. However, the other 2 worked perfectly. So well in fact that we could pull the mirror from the wall using the tool. The only other issue I had was that the rubber suction cups smelled so bad I had to store them in the garage. When I opened the boxes the smell of industrial rubber was so bad we had to open the windows in the middle of February to let the smell out. It's not vomit-inducing bad, but it was pretty rank.